3 resultados para Tobacco farms

em Digital Archives@Colby


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http://digitalcommons.colby.edu/atlasofmaine2008/1011/thumbnail.jpg

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http://digitalcommons.colby.edu/atlasofmaine2008/1000/thumbnail.jpg

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Mercury contamination of food products results from contact with soil, water, and air polluted with mercury from industrial sources, as well as from the use of mercury-containing pesticides and fungicides on plants. A method was developed for extracting mercury from tobacco products. The mercury content of various tobacco products was determined, using an atomic absorption spectrophotometer.