What is clear is that both organic and conventional foods are susceptible to contamination by pathogenic microorganisms at every point in the food chain.

不过有一点是很清楚的，无论是有机食品还是常规食品在它们生产链条的每一个环节都有可能被致病微生物污染。

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Gerber says the problems go right down the food chain, including the so-called organic goods that the new middle class are buying.

Gerber说，这种问题已经延伸到整个食物链，包括新兴中产阶级购买的所谓的有机食物。

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Organic pollutants in soil may influence the normal function of soil, contaminate groundwater, air and food chain, and therefore impact human health and environmental quality.

土壤中的有机污染物可能影响土壤的正常功能，甚至造成地下水、大气和食物链的污染，对人类健康和环境质量产生威胁。

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The second-ranked organic food chain, sad-sack Wild Oats Markets, often loses money.

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Nitrogen, a basic organic compound, is then simply incorporated back into the food chain.

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