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蔬菜叶子有蓝色液体残留是什么是保鲜剂还是农药

2025-03-14 19:09:58

推荐回答（3个）

回答1：

可能是硫酸铜溶液，类似于福尔马林，具有保鲜作用，溶于水，分解成铜离子和硫酸根离子。铜离子是重金属离子，人长期使用可能会重金属中毒。这两年香葱、芹菜、蒜薹发现过这种淡蓝色残留物，用纸擦拭就能看见。

回答2：

农药杀虫剂和除草剂一本很少有蓝色的。一般种衣剂和营养类药会是蓝色。不过毒性较小。

回答3：

农药或叶面肥残留，建议用清水浸泡，冲洗

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八上语文25课杜甫诗三首的前两首翻译。

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