The results showed that the content of fluoride in one or two vegetable have exceeded the standard, which related to the distribution of industrial pollution sources and there were obviously interrat…

结果表明，杭州市郊菜区个别蔬菜中氟化物含量已超过有关标准，这主要与工业污染源的分布有关；蔬菜中氟化物含量与大气氟浓度之间存在着明显的相关关系。

youdao