latest news: in Pakistan
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Groundwater nitrate and fluoride profiles, sources and health risk assessment in the coal mining areas of Salt Range, Punjab Pakistan
Abstract To assess the loading profiles of groundwater nitrate (NO3–) and fluoride (F–), their spatial distributions, geochemistry and associated health risks were determined for 131 groundwater samples from eastern (ESR), central (CSR) and Trans-Indus Salt Ranges (TSR) in Pakistan. Groundwater NO3– concentrations were 0.2–308 mg/L (mean 59 mg/L) in ESR, 2.7–203 mg/L (mean 73 mg/L) in CSR and […]Pakistan
Salinity enrichment, sources and its contribution to elevated groundwater arsenic and fluoride levels in Rachna Doab, Punjab Pakistan: Stable isotope approach as an evidence.
Highlights Salinity is due to ion exchange, mineral dissolution, and partial input of evaporation. Arsenic showed no clear relationship with salinity in groundwater of study area. Saline ground waters had relatively oxidizing conditions that restricted As enrichment. Groundwater salinity is one of the factors which influences the enrichment of F?. Abstract The present study aimed […]Pakistan
Fluoride and arsenic contamination in drinking water due to mining activities and its impact on local area population
Contamination of arsenic and fluoride in drinking water reservoirs is a serious health issue in the Sibi district, Balochistan, Pakistan. The contamination has already been affecting a large population of the district. Dental fluorosis and dermatitis are the most common reported illnesses in the area. This study focused on the evaluation of the root causes […]Pakistan
Groundwater in Tharparkar unfit for human consumption
Thin fresh water layers and lenses often overlay brackish fluoride contaminated water Tharparkar is spread over 22,000 square kilometers with a population of about 1.6 million residing in 2,300 villages and urban settlements. Divided into six talukas Mithi, Islamkot, Chachro, Dihlye, Diplo and Nagarparkar. The region distinguishes by its low and erratic rainfall, high atmospheric […]Pakistan
Geochemical modeling, source apportionment, health risk exposure and control of higher fluoride in groundwater of sub-district Dargai, Pakistan.
Abstract Highlights Groundwater of Dargai region, Pakistan was analyzed for fluoride concentrations. 51% of groundwater samples exceeded the WHO guideline value of 1.5 mg/L of F–. F– occurrence in water is linked to ion exchange, weathering and mining actions. PCA-MLR results of groundwater shows 64% contamination was due to geogenic source. CaHCO3 (49%), NaHCO3 and NaCl […]Pakistan
High levels of fluoride contamination in groundwater of the semi-arid alluvial aquifers, Pakistan: evaluating the recharge sources and geochemical identification via stable isotopes and other major elemental data.
Abstract Hydrogeochemical methods were integrated to delineate the geochemical factors controlling fluoride (F–) contamination in groundwater at four sites in the districts of Lahore (Samada) and Kasur (Sari Chimba, Kot Maiga, and Chah Fatehwala) in Panjab province of Pakistan. Hydrochemical data and stoichiometric ratios indicate Na-Cl and Na-HCO3 as the dominant water types with silicate […]Pakistan
Using urinary fluoride and dental fluorosis as biomarkers of fluoride exposure in brick kiln workers in Balochistan, Pakistan.
Abstract A cross-sectional study was undertaken to determine the level of urinary fluoride and dental fluorosis in brick kiln workers (n=100) and a control group (n=20) in Balochistan, Pakistan. The fluoride level was also assessed in groundwater samples(n=30). The results showed the urinary fluoride level was significantly greater (p<0.05)in the brick kiln workers (0.17–0.30 mg/L) […]Pakistan Brick Kilns
Elucidating various geochemical mechanisms drive fluoride contamination in unconfined aquifers along the major rivers in Sindh and Punjab, Pakistan
Abstract The present study aims to investigate the spatial distribution and associated various geochemical mechanisms responsible for fluoride (F–) contamination in groundwater of unconfined aquifer system along major rivers in Sindh and Punjab, Pakistan. The concentration of F– in groundwater samples ranged from 0.1 to 3.9 mg/L (mean = 1.0 mg/L) in Sindh and 0.1-10.3 […]Pakistan
Punjab: Concerns on health safety: EPA to monitor drinking water
* Punjab EPA will collect samples to test all the 23 parameters mentioned in the WHO guidelines: Director Monitoring Ali Abbas After a span of over five years, the Punjab Environmental Protection Agency (EPA) has started monitoring drinking water in the province, Daily Times learnt. The media and different forums have been highlighting issues over […]Pakistan
Fluoride prevalence in groundwater around a fluorite mining area in the flood plain of the River Swat, Pakistan
Highlights Groundwater of flood plain area of river Swat, Pakistan was analysed for F–. Groundwater samples (62.2%) exceeded the WHO safe limit of F– (1.5 mg/L). Fluoride enrichment was due to weathering of rocks and ion exchange processes. Minerals phases suggested both saturated (55%) and unsaturated (38%) groundwater. Health risk via (CFI) identified that groundwater is […]Pakistan