Sabal Daisy, Khan T I
Indira Gandhi Centre for Human Ecology, Environmental and Population Studies(HEEPS), University of Rajasthan, Jaipur 302 004, India.
J Environ Biol. 2008 Nov;29(6):871-6.
Over the last few decades the water quality is deteriorating in arid and semi-arid regions. Phulera tehsil is facing the problem of groundwater pollution. In the present investigation, determination of fluoride (F) in drinking water was conducted in (200 samples of) 40 villages of Phulera fehsil having fluoride content more than permissible limits (> 1.5 mg l(-1)). After the pilot survey symptoms of skeletal and gut fluorosis have been found in almost every inhabitant. The water samples were alkaline with pH ranging from 7.05 to 10.16. Electrical conductivity (EC) ranged from 157 micromhoScm(-1) to 1018 micromhoS cm(-1). Calcium hardness (Ca-H) ranged from 10 to 127 mg l(-1). Total hardness (TH) varied from 69 to 572 mg l(-1). Chloride varied from 92.00 mg l(-1) to 1422.00 mg l(-1) and fluoride from 1.20 to 18 mg l(-1). The alkalinity of all water samples were found to be more than the permissible limit. The results envisaged that the quality of ground water of Phulera is very poor, and is not suitable for drinking purpose and can only be used after proper treatment.
在过去几十年里，干旱和半干旱地区的水质一直在恶化。富莱拉乡正面临地下水污染问题。在本次调查中，对富莱拉乡40个村庄的200份饮用水样本进行了氟化物（F）含量测定，这些村庄的氟化物含量超过了允许限值（>1.5毫克/升）。初步调查后发现，几乎每个居民都有骨骼氟中毒和肠道氟中毒症状。水样呈碱性，pH值在7.05至10.16之间。电导率（EC）在157微西门子/厘米至1018微西门子/厘米之间。钙硬度（Ca-H）在10至127毫克/升之间。总硬度（TH）在69至572毫克/升之间变化。氯化物含量在92.00毫克/升至1422.00毫克/升之间，氟化物含量在1.20至18毫克/升之间。所有水样的碱度均超过允许限值。结果表明，富莱拉的地下水质量很差，不适合饮用，只有经过适当处理后才能使用。
