Phân tích tư tưởng của nhân dân qua đoạn thơ: Những người vợ nhớ chồng… Những cuộc đời đã hóa sông núi ta trong Đất nước của Nguyễn Khoa Điềm
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Although data quantifying particulate emissions from construction and demolition work is scarce, some
research carried out in USA gives an estimation for TSP of 2.5 tonnes/hectare/month in zones where large
construction work is in progress. The quantity of particles emitted in each city from this source will
depend on the type of construction in progress. These particles are mainly present in size fractions greater
than 10µm. However, some fraction of the total amount is likely to be present as smaller particles. Also,
some of this dust will be resuspended either by traffic or wind.
It is also difficult to assess the amount and composition of fugitive...
Nội dung trích xuất từ tài liệu:
Controlling Fine Particulate Matter Under the Clean Air Act: A Menu of Options
