The result shows that the nitrate contents in vegetables has surpassed the standard content set by the World Health Organization. Lead and mercury contents have also surpassed a half.
结果表明，蔬菜的硝酸盐含量均值已超过世界健康组织规定的含量标准，铅、汞含量也有一半以上超标。
2
Both nitrate and organic mercury were stimulating factors for the growth of t.