The Nation's River
The Nation's River
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In our eReader you can find the full English version of the book. Read The Nation's River Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Nation's River
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In the country, soil conservation measures canslow it somewhat and strain out some pollutants, and augmentation ofstreams' flow can enhance their capacity to oxidize the wastes. Butneither of these seem likely to do much to ease the longrun buildup anddiffusion of persistent pollutants like pesticides, or to avert thepossibility of disastrous spills. Public education and wiser restrictivelegislation may help, but the only real hope in terms of these poisonsappears to be that more selective and ...less indestructible substituteswill be found, and all promising means of biological pest controlexplored. Continuing programs are focused on the problem, but itcontinues to be serious.
Pollutive runoff from urban areas merges with the whole question ofurban sewer systems, for most of it gets to the river through stormsewers. We have seen that the old-style combined sewers of the Districtof Columbia and Alexandria cause gross pollution when storms force opentheir overflow gates, and we have seen too why the approach to thisproblem that formerly prevailed--the arduous, hugely expensive diggingup of sewers and their replacement with dual pipes to carry storm runoffand sewage separately--is no longer considered satisfactory.
What to read after The Nation's River?
You can find similar books in the "Read Also" column, or choose other free books by United States Dept of the Interior to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
In the country, soil conservation measures canslow it somewhat and strain out some pollutants, and augmentation ofstreams' flow can enhance their capacity to oxidize the wastes. Butneither of these seem likely to do much to ease the longrun buildup anddiffusion of persistent pollutants like pesticides, or to avert thepossibility of disastrous spills. Public education and wiser restrictivelegislation may help, but the only real hope in terms of these poisonsappears to be that more selective and ...less indestructible substituteswill be found, and all promising means of biological pest controlexplored. Continuing programs are focused on the problem, but itcontinues to be serious.
Pollutive runoff from urban areas merges with the whole question ofurban sewer systems, for most of it gets to the river through stormsewers. We have seen that the old-style combined sewers of the Districtof Columbia and Alexandria cause gross pollution when storms force opentheir overflow gates, and we have seen too why the approach to thisproblem that formerly prevailed--the arduous, hugely expensive diggingup of sewers and their replacement with dual pipes to carry storm runoffand sewage separately--is no longer considered satisfactory.
What to read after The Nation's River?
You can find similar books in the "Read Also" column, or choose other free books by United States Dept of the Interior to read onlineMoreLess
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