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近年来,蔬菜的安全性问题日益受到各方关注,人们担心蔬菜中含有农药等毒性物质,媒体也常报道食用蔬菜农药中毒的事。然而人们关注不多的是,蔬菜中的有毒物不仅仅是农药一种,化学污染、物理污染、生物污染,都能成为人体健康的杀手。特别是由于蔬菜栽培方式的改变,造成蔬菜中硝酸盐含量激增。人们不一定都知道硝酸盐对人体健康的危害更隐蔽、更危险。 吃菜等于吃硝酸盐 新鲜蔬菜中均含有一定量硝酸盐,硝酸盐是氮被土壤和蔬菜吸收变化而来的。以往菜农栽培蔬菜多属于按自然周期生长的有机栽培,长出的蔬菜虽也含有微量的硝酸盐,但对人体健康并不足以构成威胁。只是这种方式栽培的蔬菜在市场上很
In recent years, the safety of vegetables has been increasingly concerned by all parties. People worry that vegetables contain toxic substances such as pesticides. The media often report the poisoning of vegetables and vegetables. However, people pay little attention to the toxic substances in vegetables is not only a pesticide, chemical pollution, physical pollution, biological pollution, can become a killer of human health. Especially due to changes in the cultivation of vegetables, resulting in the surge in the nitrate content of vegetables. People do not always know that nitrates are more hidden and dangerous to human health. Eat vegetables is equal to eat nitrate Fresh vegetables contain a certain amount of nitrate, nitrate is absorbed by the soil and vegetables come from. In the past, vegetable growers mostly belonged to organic cultivation that grew according to the natural cycle. Although the vegetables grown also contain trace amounts of nitrate, they are not enough to pose a threat to human health. Only vegetables cultivated this way are very much on the market