first find: hazard from cationic surfactants to soil algae; some of these algae contribute to the valuable process of fixation of atmospheric nitrogen,i.e. the natural (environmentally safe) way of fertilizing soil for agriculture.

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Effect of environmental pollution with a cationic surface-active substance on algae and Fagopyrum esculentum sprouts. A first and unique study to discover hazards from cationic surfactants to soil algae; some of these algae contribute to the valuable process of  fixation of atmospheric nitrogen,i.e. the natural  (environmentally safe) way of fertilizing soil for agriculture. http://5bio5.blogspot.com/2012/12/effect-of-environmental-pollution-with.html

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