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课件网) Summary Writing Indoor Air Pollution is as bad as Outdoor Air Pollution urbanization Indoor Air Pollution occupants respiratory Indoor Air Pollution is as bad as Outdoor Air Pollution exhausts Read for Topic Sentence Generally speaking, a school has far more occupants per square meter than an office building. The fact is that with increasing urbanization, the student population in many schools is still growing. Therefore, an awareness of possible indoor air quality problems is important for teachers and students alike. Most indoor air pollution in schools comes from objects inside the school building. For example, photocopiers, wood products like desks and chairs, and carpeting cleaning products may all send out harmful elements into the air. Other pollutants may also stay in specific areas such as labs and toilets. Meanwhile, outdoor air that enters a school building through windows and other openings can also bring vehicle exhausts into the classrooms, increasing the risks of indoor air quality problems. Poor indoor air quality can cause serious respiratory problems. Younger students in particular are affected. Children’s respiratory systems are still developing. They are more sensitive to the air pollutants. Children also have higher respiratory rates than adults. As a result, they are likely to breathe in more of the pollutants than adults do. There is a lot that we can do and should do. For instance, banning smoking, storing paints in closed containers, and using those pollutant sources in periods of low or no occupancy are all easy and effective means to prevent the problems. Of course, of all the measures to take, education is on top of the list. When everyone in the school fully understands the matter, a safer and healthier learning environment with cleaner air can be created. ① ② ③ ④ Generally speaking, a school has far more occupants per square meter than an office building. The fact is that with increasing urbanization, the student population in many schools is still growing. Therefore, an awareness of possible indoor air quality problems is important for teachers and students alike. Most indoor air pollution in schools comes from objects inside the school building. For example, photocopiers, wood products like desks and chairs, and carpeting cleaning products may all send out harmful elements into the air. Other pollutants may also stay in specific areas such as labs and toilets. Meanwhile, outdoor air that enters a school building through windows and other openings can also bring vehicle exhausts into the classrooms, increasing the risks of indoor air quality problems. Poor indoor air quality can cause serious respiratory problems. Younger students in particular are affected. Children’s respiratory systems are still developing. They are more sensitive to the air pollutants. Children also have higher respiratory rates than adults. As a result, they are likely to br ... ...
