印度喀拉拉邦Killiyar河氡(222Rn)分布及其对水质的影响的评价文摘:热带河流的流量主要来自地下水的基流,尤其是夏季。因此,为了维持河流的环境流量,保留地下水排入河流的地点是比传统做法(即重新设计河道结构和水流状况)更好的选择。氡(222Rn)是一种无色、无味、惰性的天然放射性惰性气体(t1/2= 3.8天),可作为河流中地下水排放位置/秒的代用物。222Rn易溶于地下水,其在地下水中的含量相对高于地表水。本文报道了印度喀拉拉邦卡拉马纳河主要支流Killiyar河- KR (n= 6, L= 24 km, A= 102 km2)从上游到下游10个地点的河水中222Rn的活动。2017年季风前后分别采集了10个地表水样品。氡活度是由RAD7电子氡探测器(Durridge公司,美国)测定的。氡的活度在季风前为157 ~ 4588 Bq/m3,季风后为147 ~ 1740 Bq/m3。222Rn活动具有空间变异性,其异常高活动位置/s指示了该地区地下水的潜力。此外,还讨论了控制氡空间变异的因素。 Moreover, physico-chemical parameters of river water were also studied. And all the parameters were found to be within the permissible limit of Bureau of Indian Standards (BIS) specifications for potable water (IS -10500: 2012). This is a case study of application of radon for prospecting groundwater potential zones in Killiyar river course, henceforth useful for the water resource management in this riverine environment and is first of its kind in the study region. %0 - Journal Article %I - %@ - 0125-895