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藏区汞污染来自于藏药?

网址:www.waterqz.com.cn  2019-10-17  作者:admin    阅读:

我们研究者曾经也以为青藏高原是相对不受汞污染的,然而此前的一项针对生活污水的研究却意外发现,无论是总量还是人均,西藏的生活污水当中总汞排放量均达到了全国高峰。
Our researchers once thought that the Qinghai Tibet Plateau is relatively free from mercury pollution. However, a previous study on domestic sewage found that the total mercury emissions of domestic sewage in Tibet have reached the national peak, both in total and per capita.
生活污水和人们日常生活息息相关,它里面污染物浓度高,相关人群遭受的污染很可能也高。(事实上,这个思路已经让研究者开发了检测污水中毒品的技术,并且用在了实际的禁毒工作中了。)
Domestic sewage is closely related to people's daily life. The concentration of pollutants in it is high, and the pollution of relevant people is likely to be high. (in fact, this idea has enabled researchers to develop technology to detect toxic substances in sewage, and it has been used in actual drug control work.)
在之前,我们一直认为,我国的食源性汞摄入主要来自于稻米以及鱼类。这次的研究,从发现西藏生活污水当中的高浓度开始,我们就预感到,西藏地区的人体汞摄入,一定会有新的来源。毕竟一方面,西藏的食物类型和其他地区差别较大(藏民没有食用鱼类的习惯,甚至在宗教上倾向于不吃鱼;而大米的消费量,也远低于其他地区);另一方面,西藏因工业发展相比我国其它地区相对落后,工业排放污染物排放相对较少。
Until now, we have always believed that the food-borne mercury intake in China mainly comes from rice and fish. In this study, since we found the high concentration of domestic sewage in Tibet, we have a hunch that there will be new sources of mercury in Tibet. After all, on the one hand, the food types in Tibet are quite different from those in other regions (Tibetans have no habit of eating fish, even tend not to eat fish in religion; the consumption of rice is also far lower than that in other regions); on the other hand, due to the relatively backward industrial development compared with other regions in China, the industrial emissions of pollutants in Tibet are relatively small.
我们发现,这一项汞的来源,就在于藏药。
We found that the source of this mercury is Tibetan medicine.

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