3 resultados para Tobacco farms
em Digital Archives@Colby
Resumo:
http://digitalcommons.colby.edu/atlasofmaine2008/1011/thumbnail.jpg
Resumo:
http://digitalcommons.colby.edu/atlasofmaine2008/1000/thumbnail.jpg
Resumo:
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.