一、污染鱼:工业废水和农药会污染沟渠中的水,使水中的鱼类受到污染,人食用了这种被污染的鱼类就会引起中毒。消费者在购买时应注意识别被污染的鱼:首先,污染严重的鱼形态不完整,头大尾小,脊柱弯曲,甚至出现畸形,还有的皮肤发黄,尾部发青;其次,被污染的鱼眼睛浑浊,失去正常的光泽,可向外鼓出;第三,被污染鱼的鱼鳃不光滑,较为粗糙,呈暗红色;第四,正常的鱼有固有的鱼腥味,污染了的鱼则气味异常,根据污染物的不同,可呈大蒜气味、 First, polluted fish: industrial waste water and pesticides will pollute the water in ditches, so that fish in the water will be polluted. People who eat polluted fish will cause poisoning. Consumers should pay attention to the identification of contaminated fish at the time of purchase. First, the polluted fish are incomplete in shape, with a large tail and small tail, a curved spine and even deformities, yellow skin and a bluish tail, and second, contaminated Of the eyes of the fish are cloudy and loses their normal luster and can bulge outwards. Thirdly, the gills of the fish that are contaminated are not smooth, rough and dark red. Fourthly, the normal fish have an inherent fishy smell and are contaminated The smell of fish is abnormal, according to the different pollutants, showed garlic smell,