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29 tháng 12 2017

17/ __Environmentalists_________ are concerned about the rising level of air pollution. ( environment)

18/ The school believes in ___interactive_______ teaching methods. (interact)

19/ There is a ___dripping_______ faucet in your kitchen. ( drip)

20/ This country is paying attention to the __development______ of tourism. (develop)

21/ My house is ____conveniently_____ near a bus stop. ( convenience)

22/ What should you do in your school to __minimise(minimize)______ pollution? ( minimum)

1.         We are looking forward to the latest ______________ in the computer technology. (innovate)2.         ___________________ are concerned about the rising level of air pollution. (environment)3.         The tablets work more ________________ if you take a hot drink after them. (efficiency)4.         His parents seem to be ________________ that he hasn’t tried his best to study. (disappoint)5.         Smoking can cause ___________________ diseases. (respire)6.         In order to keep...
Đọc tiếp

1.         We are looking forward to the latest ______________ in the computer technology. (innovate)

2.         ___________________ are concerned about the rising level of air pollution. (environment)

3.         The tablets work more ________________ if you take a hot drink after them. (efficiency)

4.         His parents seem to be ________________ that he hasn’t tried his best to study. (disappoint)

5.         Smoking can cause ___________________ diseases. (respire)

6.         In order to keep our environment _________________, we shouldn’t drop litter in public places. (pollutant)

7.         I’ve made a _________________ to the police about the noise. (complain)

8.         Your electricity bill can be greatly _______________ by using low-energy heaters. (reduction)

9.         I’m very ________________ because they use electricity to catch fish. (worry)

10.    I am __________ disappointed to know my children haven’t cleaned up all the trash. (extreme)

11.    _______________ are interested in the protection of the environment. (conserve)

12.    Speaking in the public seems to come quite ________________ to her. (nature)

13.    __________________ encourage people to use products which are _________________ friendly. (governmental / environment)

14.    Consumers don’t want products that will save money but work ________________ (affect)

15.    The boy behaves so __________________ that we don’t like him. (politeness)

16.    Sulfur dioxide is one of several_______ that can be found in coal-fired power station. (pollute)

17.    If ________________ continues, there will be more a lot of forests ten years from now. (forest)

18.    The report is _________________, so I can hardly find anything informative. (sense)

19.    Your ______________ have to be taken into consideration. (suggest)

20.    ________________, our environment must be protected. (ultimate)

21.    The ___________ to our advertisement has been somewhat ____________. (respond / appoint)

22.    In Sweden, most of the houses will be _____________ by __________ energy soon. (hot / sun)

23.    Snow in April is an unusual _________________ in this area. (occur)

24.    Good __________________ were the key to success. (prepare)

25.    People sang Auld Lang Syne ________________ on New Year’s Eve. (joy)

26.    We love our grandma for her _________________. (generous)

27.    Mary is ________________ to be the most famous girl in our school. (considerate)

28.    You should ________________ yourself with the new environment. (family)

29.    We think that Mother’s Day should be celebrated __________________ (nation)

30.    We are very busy ___________________ the Lunar New Year holiday. (celebration)

31.    I worry about the _____________ effect that violent films may have on children. (destroy)

32.    He’s been one of the most effective ____________ in the campaign. (act)

33.    My opinion is that ghosts are ______________. There are no ghosts in the world. (exist)

34.    What is the UFO, Dad ? – Well, it is an ______________ flying object. (identical)

35.    Maldini is _______________ in AC Milan. He is the key to success. (replace)

36.     Life ________________ has increased a lot in modern life. (expect)

37.    Children will have a time to __________________ tradition. (enhancement)

38.    She is going downtown to buy some ________________ ornaments. (decoration)

39.    He is just a business ________________. (acquaint)

40.    All guests arrived bringing ______________. (give)

41.    These hills were formed by _________________ eruption. (volcano)

42.    Students have a tendency to _______________ themselves at exam time. (behavior)

43.    Her parents are _______________ that she had won the first prize. (joy)

44.    The school was completely ________________ by fire. (destruction)

45.    When there is a volcanic _______________, hundreds of people may lose their life. (erupt)

46.    The ______________ resorts are empty in winter. (coast)

47.    The building was _______________ damaged in the war. (extend)

48.    _______________, the typhoon caused severe damage to the village. (luck)

2
29 tháng 5 2021

1.         We are looking forward to the latest ________innovation______ in the computer technology. (innovate)

2.         _________Environmentalists__________ are concerned about the rising level of air pollution. (environment)

3.         The tablets work more ________effectively________ if you take a hot drink after them. (efficiency)

4.         His parents seem to be _______disappointed_________ that he hasn’t tried his best to study. (disappoint)

5.         Smoking can cause _______respiratory____________ diseases. (respire)

6.         In order to keep our environment _______unpolluted__________, we shouldn’t drop litter in public places. (pollutant)

7.         I’ve made a ______complaint___________ to the police about the noise. (complain)

8.         Your electricity bill can be greatly ____reduced___________ by using low-energy heaters. (reduction)

9.         I’m very _________worrried_______ because they use electricity to catch fish. (worry)

10.    I am _____extremely_____ disappointed to know my children haven’t cleaned up all the trash. (extreme)

11.    ________conservationists_______ are interested in the protection of the environment. (conserve)

12.    Speaking in the public seems to come quite ______natural__________ to her. (nature)

13.    government encourage people to use products which are ______envoronmentally___________ friendly. (governmental / environment)

14.    Consumers don’t want products that will save money but work __________ineffectively______ (affect)

15.    The boy behaves so _________impolitely_________ that we don’t like him. (politeness)

16.    Sulfur dioxide is one of several___pollutants____ that can be found in coal-fired power station. (pollute)

17.    If ________deforestation ________ continues, there will be more a lot of forests ten years from now. (forest)

18.    The report is _______sensible__________, so I can hardly find anything informative. (sense)

19.    Your _______suggestion_______ have to be taken into consideration. (suggest)

20.    ________ultimately________, our environment must be protected. (ultimate)

 

29 tháng 5 2021

21.    The _______response___ to our advertisement has been somewhat _____disappointing_______. (respond / appoint)

22.    In Sweden, most of the houses will be ________heated_____ by ___solar_______ energy soon. (hot / sun)

23.    Snow in April is an unusual ________occurence_________ in this area. (occur)

24.    Good ________preparation__________ were the key to success. (prepare)

25.    People sang Auld Lang Syne _______joyfully_________ on New Year’s Eve. (joy)

26.    We love our grandma for her ______generation ___________. (generous)

27.    Mary is _______considered_________ to be the most famous girl in our school. (considerate)

28.    You should _________familiarize_______ yourself with the new environment. (family)

29.    We think that Mother’s Day should be celebrated _________internationally_________ (nation)

30.    We are very busy ________celebrating___________ the Lunar New Year holiday. (celebration)

31.    I worry about the _______destructive______ effect that violent films may have on children. (destroy)

32.    He’s been one of the most effective _____activist______ in the campaign. (act)

33.    My opinion is that ghosts are ______________. There are no ghosts in the world. (exist)

34.    What is the UFO, Dad ? – Well, it is an ________unidentified______ flying object. (identical)

35.    Maldini is _______replaced________ in AC Milan. He is the key to success. (replace)

36.     Life ______expectancy__________ has increased a lot in modern life. (expect)

37.    Children will have a time to ________enhance__________ tradition. (enhancement)

38.    She is going downtown to buy some ________decorative________ ornaments. (decoration)

39.    He is just a business ________accquaintance________. (acquaint)

40.    All guests arrived bringing ______________. (give)

41.    These hills were formed by ____volcanic_____________ eruption. (volcano)

42.    Students have a tendency to ______behave_________ themselves at exam time. (behavior)

43.    Her parents are _____joyful__________ that she had won the first prize. (joy)

44.    The school was completely _______destroyed_________ by fire. (destruction)

45.    When there is a volcanic _________eruption______, hundreds of people may lose their life. (erupt)

46.    The _______coastal_______ resorts are empty in winter. (coast)

47.    The building was _______extentively________ damaged in the war. (extend)

48.    ____Unluckily___________, the typhoon caused severe damage to the village. (luck)

26 tháng 12 2021

miraculous

interactive

capably

instruction

accuracy

26 tháng 12 2021

1 miraculous

2 interactive

3 capably

4 instruction

5 accuracy

I. Complete the sentences with the correct form of the words in brackets. 1. In order to keep our environment ............ , we shouldn’t drop litter in public places. (pollute) 2. Don’t pump ............ into seas and rivers or it will pollute them. (sew) 3. Don’t throw away ............ bottles, papers, and glass. Take them to recycling centres. (use) 4. If we keep on ............ the air, more people will suffer from respiratory diseases. (pollution) 5. The local authorities have received...
Đọc tiếp

I. Complete the sentences with the correct form of the words in brackets.
1. In order to keep our environment ............ , we shouldn’t drop litter in public places. (pollute)
2. Don’t pump ............ into seas and rivers or it will pollute them. (sew)
3. Don’t throw away ............ bottles, papers, and glass. Take them to recycling centres. (use)
4. If we keep on ............ the air, more people will suffer from respiratory diseases. (pollution)
5. The local authorities have received many letters of ............ about the industrial wastes from that factory. (complain)
II. Complete the sentences with the correct form of the words in brackets.
1. Ba was ............ ill right after eating those ............ mushrooms. (serious / poison)
2. ............ are interested in the protection of the environment. (conserve)
3. Without ............ , some people wouldn’t catch fish. (electric)
4. Shhh. Listen ............ to the conservationist teaching us how to protect the environment. (care)
5. What is responsible for the ............ problems in your city? (environment)
III. Complete the sentences with the correct form of the words in brackets.
1. Make sure the use of ............ is not harmful to farm workers’ health. (pest)
2. ............ ! You have successfully held the clean-up campaign. (congratulate)
3. Use public transport or we won’t ............ pollution. (minimum)
4. If ............ continues, there will be no forest left ten years from now. (forest)
5. The rising level of air pollution has caused concern among ............ . (environment)

1
24 tháng 10 2019

I. Complete the sentences with the correct form of the words in brackets.
1. In order to keep our environment ......unpolluted...... , we shouldn’t drop litter in public places. (pollute)
2. Don’t pump ....sewage........ into seas and rivers or it will pollute them. (sew)
3. Don’t throw away .......used..... bottles, papers, and glass. Take them to recycling centres. (use)
4. If we keep on .....polluting....... the air, more people will suffer from respiratory diseases. (pollution)
5. The local authorities have received many letters of ........complaint.... about the industrial wastes from that factory. (complain)
II. Complete the sentences with the correct form of the words in brackets.
1. Ba was ......seriously...... ill right after eating those ......poisonous...... mushrooms. (serious / poison)
2. ......Conservationists...... are interested in the protection of the environment. (conserve)
3. Without .......electricity..... , some people wouldn’t catch fish. (electric)
4. Shhh. Listen ......carefully...... to the conservationist teaching us how to protect the environment. (care)
5. What is responsible for the .....environmental....... problems in your city? (environment)
III. Complete the sentences with the correct form of the words in brackets.
1. Make sure the use of ......pesticide...... is not harmful to farm workers’ health. (pest)
2. .....Congratulations....... ! You have successfully held the clean-up campaign. (congratulate)
3. Use public transport or we won’t .....minimise....... pollution. (minimum)
4. If ......deforestation...... continues, there will be no forest left ten years from now. (forest)
5. The rising level of air pollution has caused concern among .......envrionmentalists..... . (environment)

Read the passage.      There are three main (1) ……………… of pollution: air pollution, water pollution and noise pollution. Air, which is the most important element of our environment for our (2) ……………………, can be polluted in many ways. Smoke in the air from mills, factories and industry (3) …………………… carbon, monoxide, carbon dioxide, and methane, which are all poisonous gases. This leads (4) …………………… health problems like asthma and lung diseases, and the thinning of the ozone layer, which (5)...
Đọc tiếp

Read the passage.

      There are three main (1) ……………… of pollution: air pollution, water pollution and noise pollution. Air, which is the most important element of our environment for our (2) ……………………, can be polluted in many ways. Smoke in the air from mills, factories and industry (3) …………………… carbon, monoxide, carbon dioxide, and methane, which are all poisonous gases. This leads (4) …………………… health problems like asthma and lung diseases, and the thinning of the ozone layer, which (5) …………………… us from harmful UV ray. China, the USA, Russia, India, Mexico and Japan are the world leaders in air pollution (6) …………………… Water is also polluted by the discharge of commercial and industrial waste. Sewage in drinking water is another (7) …………………… of water pollution as it contains germs and viruses. The noise of vehicles, mills, and factories can be really unbearable. This kind of constant sound also (8) ……………… headaches, tension, (9) ……..…………  stress and migraines. People living next to a building site where there is too much noise can become sick, as they can not sleep or relax. This is (10) …………………… noise pollution.

8-Point Star: 11Choose the best answer (A, B, C or D).

      1.   A. types                       B. kinds                       C. models                    D. both A & B

      2.   A. survival                   B. survive                    C. surviving                 D. survived

      3.   A. includes                  B. include                    C. contains                  D. contain

      4.   A. in                            B. into                         C. to                            D. from

      5.   A. prevents                  B. protects                   C. avoids                     D. hides

      6.   A. emissions                B. emitted                   C. emission                  D. emitting

      7.   A. effect                      B. cause                       C. result                       D. consequence

      8.   A. causes                     B. leads to                   C. results in                 D. all are correct

      9.   A. brain                       B. mind                       C. head                        D. mental

      10. A. told                         B. called                      C. said                         D. mentioned

3
24 tháng 1 2022

1, B

2, A

3, C

4, C

5, B

6, A

7, B

8, A

9, D

10. B

24 tháng 1 2022

Choose the best answer (A, B, C or D).

      1.   A. types                       B. kinds                       C. models                    D. both A & B

      2.   A. survival                   B. survive                    C. surviving                 D. survived

      3.   A. includes                  B. include                    C. contains                  D. contain

      4.   A. in                            B. into                         C. to                            D. from

      5.   A. prevents                  B. protects                   C. avoids                     D. hides

      6.   A. emissions                B. emitted                   C. emission                  D. emitting

      7.   A. effect                      B. cause                       C. result                       D. consequence

      8.   A. causes                     B. leads to                   C. results in                 D. all are correct

      9.   A. brain                       B. mind                       C. head                        D. mental

 

      10. A. told                         B. called                      C. said                         D. mentioned

26 tháng 5 2019

II Give correct form of the word

11 ...........ENVIRONMENTALISTS......................are concerned about the air pollution in big cities ( environment )

12 I think Mother's Day should be celebrated .............INTERNATIONALLY....................( nation )

13 In Western countries electricity gas and water are .......NECESSITIES.............( need)

14 There were 1,180 UFO .............SIGHTINGS....................reported in Canada in 2013 ( sight )

15 The ending of the book was entirely .........UNPREDICTABLE.........................( predict)

26 tháng 5 2019

11 ...............Environmentalists..................are concerned about the air pollution in big cities ( environment )

12 I think Mother's Day should be celebrated .............nationally....................( nation )

13 In Western countries electricity gas and water are ..........necessary..........( need)

14 There were 1,180 UFO ...........sightings......................reported in Canada in 2013 ( sight )

15 The ending of the book was entirely ..................predicted................( predict)

24 tháng 5 2019

II Give correct form of the word

11 ..........Environmentalists......................are concerned about the air pollution in big cities ( environment)

12 I think Mother's Day should be celebrated .................nationally..............( nation)

13 In Western countries electricity , gas and water are ............necessary.................( need)

14 There were 1,180 UFO .......sightings....................reported in Canada in 2013 ( sight)

15 The ending of the book was entirely..............predicted...................( predict)

24 tháng 5 2019

II Give correct form of the word

11 ...................Environmentalists.............are concerned about the air pollution in big cities ( environment)

12 I think Mother's Day should be celebrated ................internationlly...............( nation)

13 In Western countries electricity , gas and water are .............necessary................( need)

14 There were 1,180 UFO ............sighting...............reported in Canada in 2013 ( sight)

15 The ending of the book was entirely..............predictable...................( predict)

Give the correct form of the words in bracket 1. We are going to give a...... about water pollution (present) 2. Many people have received medical.......because of the disease (treat) 3...........................has caused the problem of air pollution (industry) 4 The................in air pollution was dramatic last year (reduce) 5. Students are taught about............issues at school (environment) Read the passage and fill in the each blank with ONE suitable word harms move affects...
Đọc tiếp

Give the correct form of the words in bracket

1. We are going to give a...... about water pollution (present)

2. Many people have received medical.......because of the disease (treat)

3...........................has caused the problem of air pollution (industry)

4 The................in air pollution was dramatic last year (reduce)

5. Students are taught about............issues at school (environment)

Read the passage and fill in the each blank with ONE suitable word

harms move affects indirect effects

protect harmful leads can caused

EFFECTS OF AIR POLLUTION

there are different kinds of negative and harmful effects of air pollution. Air pollution (1)......... global warming in a great scale. The global warming (2)................ to the increase of temperatures worldwide, the increase in sea levels and the melting of icebergs. It (3)........... all species on the earth. The effects of air pollution are very (4)....... for health. It causes diferent kinds of diseases like heart attack, cancer,etc. Every year millions of people of all over the world die due to direct or (5)........... effects of air pollution. Acid rain is another efect of air pollution. acid rain can cause great damage to human, animals and crops. Air pollution (6)........... the wild life. Humans and animals face a lot of serious efects due to air pollution. Toxic chemicals present in the air can forrce wildlife species to (7)........ to new place and change their habitat. The toxic pollutants over the surface of the water can also affect sea animals. It is right time (8)......... ourr environment. To create a better place to live, we have to stop the air.

2
17 tháng 1 2020

Give the correct form of the words in bracket

1. We are going to give a...presentation... about water pollution (present)

2. Many people have received medical...treatment....because of the disease (treat)

3........Industrial...................has caused the problem of air pollution (industry)

4 The.......reduction.........in air pollution was dramatic last year (reduce)

5. Students are taught about...environmental.........issues at school (environment)

17 tháng 1 2020

Read the passage and fill in the each blank with ONE suitable word

harms move affects indirect effects

protect harmful leads can caused

EFFECTS OF AIR POLLUTION

there are different kinds of negative and harmful effects of air pollution. Air pollution (1) effects global warming in a great scale. The global warming (2) leads to the increase of temperatures worldwide, the increase in sea levels and the melting of icebergs. It (3) harms all species on the earth. The effects of air pollution are very (4) harmful for health. It causes diferent kinds of diseases like heart attack, cancer,etc. Every year millions of people of all over the world die due to direct or (5) indirect effects of air pollution. Acid rain is another efect of air pollution. acid rain can cause great damage to human, animals and crops. Air pollution (6) affects the wild life. Humans and animals face a lot of serious efects due to air pollution. Toxic chemicals present in the air can forrce wildlife species to (7) move to new place and change their habitat. The toxic pollutants over the surface of the water can also affect sea animals. It is right time (8) protect ourr environment. To create a better place to live, we have to stop the air.

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.Environmental pollution is one of the impacts of human activities on the Earth. Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollution disturbs our ecosystem and the balance in the environment. Pollution occurs in different forms; air, water, soil,...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Environmental pollution is one of the impacts of human activities on the Earth. Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollution disturbs our ecosystem and the balance in the environment. Pollution occurs in different forms; air, water, soil, radioactive, noise, heat/ thermal and light Let us discuss the causes and effects of air pollution on mankind and the environment as a whole.

Air pollution is the most prominent and dangerous form of pollution. It occurs due to many reasons. Excessive burning of fuel which is a necessity of our daily lives for cooking, driving and other industrial activities; releases a huge amount of chemical substances in the air every day; these pollute the air. Smoke from chimneys, factories, vehicles or burning of wood basically occurs due to coal burning; this releases sulphur dioxide into the air making it toxic.

The effects of air pollution are evident too. The increase in the amount of CO2 in the atmosphere leads to smog which can restrict sunlight from reaching the earth. Thus, preventing plants in the process of photosynthesis. Gases like sulfur dioxide (SO2) and nitrogen oxide (NO) can cause acid rain.

The decrease in quality of air leads to several respiratory problems including asthma or lung cancer. Chest pain, congestion, throat inflammation, cardiovascular disease, respiratory disease are some of diseases that can be caused by air pollution.

The emission of greenhouse gases particularly CO2 is leading to global warming. Every other day new industries are being set up, new vehicles come on roads and trees are cut to make way for new homes. All of them, in direct or indirect way lead to increase in CO2 in the environment. The increase in CO2 leads to melting of polar ice caps which increases the sea level and pose danger for the people living near coastal areas.

Ozone layer is the thin shield high up in the sky that stops ultra violet rays from reaching the earth. As a result of human activities, chemicals, such as chlorofluorocarbons (CFCs), were released into the atmosphere which contributed to the depletion of ozone layer.

 

The word "respiratory" in paragraph 4 is closest in meaning to____.

A. connected with the digestion of food 

B. connected with breathing 

C. connected with the skeleton of a person 

D. connected with the body's brain

1
31 tháng 12 2018

Đáp án B

Từ “respiratory” trong đoạn 4 gần nghĩa nhất với từ nào?

A. có liên quan đến việc tiêu hóa thức ăn

B. có liên quan đến việc hít thở

C. có liên quan đến bộ xương của con người

D. có liên quan đến não của con người

Căn cứ vào câu: The decrease in quality of air leads to several respiratory problems including asthma or lung cancer.

(Việc giảm chất lượng không khí dẫn đến một số vấn đề hô hấp bao gồm hen suyễn hoặc ung thư phổi.)

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42. Environmental pollution is one of the impacts of human activities on the Earth. Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollution disturbs our ecosystem and the balance in the environment. Pollution occurs in different forms; air, water,...
Đọc tiếp

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 36 to 42.

Environmental pollution is one of the impacts of human activities on the Earth. Pollution occurs when pollutants contaminate the natural surroundings; which brings about changes that affect our normal lifestyles adversely. Pollution disturbs our ecosystem and the balance in the environment. Pollution occurs in different forms; air, water, soil, radioactive, noise, heat/ thermal and light Let us discuss the causes and effects of air pollution on mankind and the environment as a whole.

Air pollution is the most prominent and dangerous form of pollution. It occurs due to many reasons. Excessive burning of fuel which is a necessity of our daily lives for cooking, driving and other industrial activities; releases a huge amount of chemical substances in the air every day; these pollute the air. Smoke from chimneys, factories, vehicles or burning of wood basically occurs due to coal burning; this releases sulphur dioxide into the air making it toxic.

The effects of air pollution are evident too. The increase in the amount of CO2 in the atmosphere leads to smog which can restrict sunlight from reaching the earth. Thus, preventing plants in the process of photosynthesis. Gases like sulfur dioxide (SO2) and nitrogen oxide (NO) can cause acid rain.

The decrease in quality of air leads to several respiratory problems including asthma or lung cancer. Chest pain, congestion, throat inflammation, cardiovascular disease, respiratory disease are some of diseases that can be caused by air pollution.

The emission of greenhouse gases particularly CO2 is leading to global warming. Every other day new industries are being set up, new vehicles come on roads and trees are cut to make way for new homes. All of them, in direct or indirect way lead to increase in CO2 in the environment. The increase in CO2 leads to melting of polar ice caps which increases the sea level and pose danger for the people living near coastal areas.

Ozone layer is the thin shield high up in the sky that stops ultra violet rays from reaching the earth. As a result of human activities, chemicals, such as chlorofluorocarbons (CFCs), were released into the atmosphere which contributed to the depletion of ozone layer.

Question 39: The word "respiratory" in paragraph 4 is closest in meaning to

A. connected with the digestion of food

B. connected with breathing

C. connected with the skeleton of a person

D. connected with the body's brain

1
23 tháng 10 2018

Đáp án B

Từ “respiratory” trong đoạn 4 gần nghĩa nhất với từ nào?

A. có liên quan đến việc tiêu hóa thức ăn               B. có liên quan đến việc hít thở

C. có liên quan đến bộ xương của con người          D. có liên quan đến não của con người

Căn cứ vào câu: The decrease in quality of air leads to several respiratory problems including asthma or lung cancer.

(Việc giảm chất lượng không khí dẫn đến một số vấn đề hô hấp bao gồm hen suyễn hoặc ung thư phổi.)