Conclusion The organic extracts of source water samples collected from surface water and ground water and its tap water samples could cause DNA breakages of HPBL in different degrees in a certain city. 结论某市各水源水及自来水中有机提取物对人外周血淋巴细胞DNA存在不同程度断裂损伤作用。
The drinking water sources is conversation land or the place where the surface and ground water comes from, which concludes centralistic drinking water sources and supply of tap water. 饮用水水源地是指能够满足人类饮用的,地表水水源和地下水水源的涵养地或者源头地区,包括集中式饮用水源地和供应自来水的自备水厂取水口所在的供水水源地。