Hand book of Public Health Laboratory Work And Food Inspection
Hand book of Public Health Laboratory Work And Food Inspection
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In our eReader you can find the full English version of the book. Read Hand book of Public Health Laboratory Work And Food Inspection 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 Hand book of Public Health Laboratory Work And Food Inspection
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There is afso another source of pollution which must not be overlooked, this is the case where the water supply is intermittent. Pipes alternately full and empty are very liable, if there be a leak, to suck in any liquids or gases through which the pipes may pass, just as a Bunsen lamp draws air into it when it is alight. The conclusions to be drawn in the case of waters from deep and shallow wells are different. In deep wells the amounts of saline ammonia are frequently somewhat excessive, and... these may be disregarded if unaccompanied by other evidence of pollution, although these amounts would, as we have already said, if present in a shallow well, justify the condemnation of the water. The origin of the ammonia in deep well waters is the subject of much speculation ; in some cases it may be due to ammonia salts deposited in the deeper layers of the earth, or what is more likely, is that it is due to nitrates in solution coming in contact with iron salts, which act as reducing agents.
What to read after Hand book of Public Health Laboratory Work And Food Inspection?
You can find similar books in the "Read Also" column, or choose other free books by Octavius William Andrews to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
There is afso another source of pollution which must not be overlooked, this is the case where the water supply is intermittent. Pipes alternately full and empty are very liable, if there be a leak, to suck in any liquids or gases through which the pipes may pass, just as a Bunsen lamp draws air into it when it is alight. The conclusions to be drawn in the case of waters from deep and shallow wells are different. In deep wells the amounts of saline ammonia are frequently somewhat excessive, and... these may be disregarded if unaccompanied by other evidence of pollution, although these amounts would, as we have already said, if present in a shallow well, justify the condemnation of the water. The origin of the ammonia in deep well waters is the subject of much speculation ; in some cases it may be due to ammonia salts deposited in the deeper layers of the earth, or what is more likely, is that it is due to nitrates in solution coming in contact with iron salts, which act as reducing agents.
What to read after Hand book of Public Health Laboratory Work And Food Inspection?
You can find similar books in the "Read Also" column, or choose other free books by Octavius William Andrews to read onlineMoreLess
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