{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,9]],"date-time":"2026-10-09T02:38:09Z","timestamp":1791513489987,"version":"4.3.4"},"reference-count":69,"publisher":"American Chemical Society (ACS)","issue":"17","license":[{"start":{"date-parts":[[2018,8,16]],"date-time":"2018-08-16T00:00:00Z","timestamp":1534377600000},"content-version":"vor","delay-in-days":20,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_termsofuse.html"}],"funder":[{"DOI":"10.13039\/100009131","name":"Direktion f\u00fcr Entwicklung und Zusammenarbeit","doi-asserted-by":"publisher","award":["7F-09010.01"],"award-info":[{"award-number":["7F-09010.01"]}],"id":[{"id":"10.13039\/100009131","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2018,9,4]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>For about the past eight decades, high concentrations of naturally occurring fluoride have been detected in groundwater in different parts of India. The chronic consumption of fluoride in high concentrations is recognized to cause dental and skeletal fluorosis. We have used the random forest machine-learning algorithm to model a data set of 12\u202f600 groundwater fluoride concentrations from throughout India along with spatially continuous predictor variables of predominantly geology, climate, and soil parameters. Despite only surface parameters being available to describe a subsurface phenomenon, this has produced a highly accurate prediction map of fluoride concentrations exceeding 1.5 mg\/L at 1 km resolution throughout the country. The most affected areas are the northwestern states\/territories of Delhi, Gujarat, Haryana, Punjab, and Rajasthan and the southern states of Andhra Pradesh, Karnataka, Tamil Nadu, and Telangana. The total number of people at risk of fluorosis due to fluoride in groundwater is predicted to be around 120 million, or 9% of the population. This number is based on rural populations and accounts for average rates of groundwater consumption from nonmanaged sources. The new fluoride hazard and risk maps can be used by authorities in conjunction with detailed groundwater utilization information to prioritize areas in need of mitigation measures.<\/jats:p>","DOI":"10.1021\/acs.est.8b01679","type":"journal-article","created":{"date-parts":[[2018,7,27]],"date-time":"2018-07-27T09:23:28Z","timestamp":1532683408000},"page":"9889-9898","source":"Crossref","is-referenced-by-count":236,"title":["Prediction\nModeling and Mapping of Groundwater Fluoride\nContamination throughout India"],"prefix":"10.1021","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2522-1021","authenticated-orcid":true,"given":"Joel E.","family":"Podgorski","sequence":"first","affiliation":[{"name":"Eawag, Swiss Federal Institute of Aquatic Science and Technology , , ,","place":["Du\u0308bendorf, Switzerland, 8600"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pawan","family":"Labhasetwar","sequence":"additional","affiliation":[{"name":"CSIR-NEERI , , , ,","place":["Nagpur, Nehru Marg, India, 440020"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dipankar","family":"Saha","sequence":"additional","affiliation":[{"name":"Central Ground Water Board , Government of India, ,","place":["Faridabad, India, 121001"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7342-4061","authenticated-orcid":true,"given":"Michael","family":"Berg","sequence":"additional","affiliation":[{"name":"Eawag, Swiss Federal Institute of Aquatic Science and Technology , , ,","place":["Du\u0308bendorf, Switzerland, 8600"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2018,7,27]]},"reference":[{"key":"2026090317164188800_cit1","volume-title":"Towards Pragmatic Action\nfor Addressing Groundwater Overexploitation in India","author":"World Bank Deep Wells and Prudence.","year":"2010"},{"issue":"18","key":"2026090317164188800_cit2","doi-asserted-by":"publisher","DOI":"10.1029\/2009GL039401","article-title":"Dwindling groundwater resources\nin northern India, from satellite gravity observations","volume":"36","author":"Tiwari","year":"2009","journal-title":"Geophys. 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