| Atrolonjelt | Дата: Вторник, 17.06.2014, 09:30 | Сообщение # 1 |
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Группа: Гости
| The total annual expenditures for IAQ problem prevention and mitigation activities in the United States is estimated at approximately $16 billion with a range of $12 billion to $20 billion. Major expenditures were for asbestos and lead abatement (~ $4 billion/y), duct http://designdesign.comze.com cleaning (~ $4 billion/y), commercial building remediation (includes mold) ~ $3.4 billion/y, IAQ consultants services (~ $2.1 billion/y), and air cleaning and improved filtration (~ $1.5 billion/y). The total estimate does not include activities that were considered typical or routine in the early 1970s before public awareness of indoor air quality became more common.
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