Control of Indoor Air Pollution

Indoor Air Pollution

High concentrations of air pollutants can also build up indoors, where people spend 85% to 90% of their time, and in other enclosed spaces such as underground mines, where air is slowly replenished/ Indoor air today generally much cleaner than that found decades ago, when most houses and other buildings were heated with leaky coal-burning furnaces, but there is still cause for concern. In recent years, scientists have found that the air inside some homes, schools, and office buildings is more polluted and dangerous than outdoor air on a smoggy day. Air pollutants found in buildings produce dizziness, headaches, coughing, sneezing, burning eyes, and flulike symptoms in many people. Air pollutants can accumulate in any buildings. But levels tend to be higher in energy-efficient, relatively airtight houses that do not use air-to-air heat exchangers to bring in sufficient fresh air. According to the EPA and public health officials, the most serious indoor air pollution threat is from radioactive radon-222.

Упражнение 11.

В правой колонке найдите русские эквиваленты следующих английских словосочетаний из текста Indoor Air Pollution:

1. burning eyes 2. coal burning furnaces 3. flulike symptoms 4. according to 5. airtight houses 6. high concentrations 7. build up 8. cause for concern 9. heat exchangers 10. public health officials

a. угольные печи b. симптомы заболевания, похожего на грипп c. герметичные (воздухонепроницаемые) дома d. высокие концентрации e. жжение в глазах f. теплообменники g. организаторы здравоохранения h. постепенно накапливаться i. согласно j. причина для беспокойства

Упражнение 12.

Найдите в каждом предложении текста Indoor Air Pollution подлежащее и сказуемое. Определите время и залог сказуемого.

Упражнение 13.

Письменно переведите текст. (Контрольное время – 25 минут)

Control of Outdoor Air Pollution Despite the seriousness of indoor air pollution, Congress, the EPA, and state legislatures have been reluctant to establish mandatory indoor air pollution is that there are over a hundred million homes and buildings involved/ In addition, many home and buildings owners would resent having their indoor air tested and being required to reduce excessive pollution levels, even if their indoor air was making them sick or threatening them and other family members with premature death.

One way to control indoor air pollution is to install air-to-air heat exchangers, which maintain a flow of fresh air without causing major heating or cooling losses. A study showed that indoor levels of formaldehyde and several other toxic gases can also be sharply reduced by house plants.

Дата добавления: 2014-12-27