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环境科学  2005 

Preliminary Determination of Organic Pollutants in Agricultural Fertilizers
农用肥料中有机污染物的初步检测

Keywords: agricultural fertilizers,organic pollutants,soil pollution,food safety
农用肥料
,有机污染物,土壤污染,食品安全

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Abstract:

Organic pollutants such as polycyclic aromatic hydrocarbons (PAHs) in agricultural fertilizers are new problem deserved more study. Eight kinds of organic pollutants including 43 compounds classified as US EPA priority pollutants in twenty one agricultural fertilizers which were universally used in China were determined by Gas chromatography-mass spectrum (GC-MS). Three kinds of organic pollutants including more than 5 compounds were detected in most fertilizers, composing mainly of phthalic acid esters(PAEs), nitrobenzenes (NBs) and polycyclic aromatic hydrocarbons(PAHs). There were 26 compounds detected in at least one fertilizer, five of them especially PAEs detected in most fertilizer and even in all fertilizers. Benzo(a)pyrene, a strongly carcinogenic compound was detected in two fertilizers. Higher concentrations of compounds were determined in those fertilizers such as multi-function compound fertilizers and coated fertilizers.

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