论文部分内容阅读
目的了解南川区地下水质,保证饮水安全,为开展地下水环境保护提供依据。方法对南川区2012年打出的1200口地下水井按5%抽样,共采集样品60件,回顾性调查采样14件,全部74件水样品按GB/T5750-2006《生活饮用水标准检验方法》检测,检测结果按GB14848-93《地下水环境质量标准》Ⅲ类水源水进行评价。结果 74个水样均属清洁,较清洁范围,水质较好以上的31个,占41.89%,较差以下的43个,占58.11%。结论南川区红层地下水水质基本能满足人畜饮用标准,但普遍存在微生物污染严重,铁锰浓度超标等安全隐患,不适宜直接饮用。
Objective To understand the underground water quality in Nanchuan District and ensure the safety of drinking water, so as to provide the basis for groundwater environmental protection. Methods A total of 1200 groundwater wells shot in Nanchuan District in 2012 were sampled at 5%. A total of 60 samples were collected and 14 samples were retrospectively surveyed. All 74 water samples were tested according to GB / T5750-2006 Standard Test Method for Domestic Drinking Water , The test results according to GB14848-93 “Groundwater Environmental Quality Standards” Class Ⅲ source water evaluation. Results All 74 water samples were clean, with a range of cleanliness and water quality better than 31, accounting for 41.89% and 43 less than 58.11%. Conclusions The groundwater quality of the red beds in Nanchuan District can basically meet the drinking standards of human and livestock, but there are common potential safety hazards such as serious microbial pollution and excessive concentration of iron and manganese, which are not suitable for direct drinking.