Secondary salinisation is the most harmful and extended phenomenon of the unfavourable effects of irrigation on the soil and environment. An attempt was made to study the impact of poor quality ground water on soils in terms of secondary salinisation and availability of soil nutrients in Faridkot district of Punjab of northern India.

Says water below 100 feet is highly saline and non-potable

In a recent move, Brihanmumbai Municipal Corporation (BMC) has decided to restrict the depth of borewells and tubewells in the city to 100 feet. This comes after the civic body asked the Central Water and Power Research Station (CWPRS), Pune, to
examine the underground water in the city.

The primary report submitted by CWPRS revealed that the underground water had high saline content and was, therefore, not fit for drinking.

NAGAON, August 3: After detection of fluoride and iron in underground water sources in different areas under Hojai subdivision, the PHE Hojai division has implemented different water supply schemes including installation of wells and tube wells, piped water supply scheme, fluoride-free water in fluoride-prone areas, testing of drinking water under the National Rural Drinking Water Quality Monitoring (NRDWQM) programme during the last 20 years to redress the problem of contaminated water in Nagaon district.

Carcinogens in Agra

Ongole, July 27: Aqua culture and salt industries have turned soil saline in many parts of Prakasam district making large chunks of land unfit for cultivation. Salt cultivation is on in 7,867 acres in four mandals of the district and in the last one decade, aquaculture is also on the rise in nine mandals.

Tens of millions of people in south and southeast Asia routinely consume ground water that has unsafe arsenic levels. Using hydrologic and (bio)geochemical measurements, the researchers show that on the minimally disturbed Mekong delta of Cambodia, arsenic is released from near-surface, river-derived sediments and transported, on a centennial timescale, through the underlying aquifer back to the river.

South Asia's well-water is widely polluted with arsenic, but no one has located the source. A study on the Mekong River finds that contamination begins in pond sediments, and is spread by groundwater flow to wells.


Ground water samples from 83 villages in Honnali taluk of Davangere district were analyzed for their suitability for irrigation purpose with special reference to presence of fluoride content. Ground water in the study area was classified according to sodium adsorption ratio and electrical conductivity.

The ground water samples collected from different tehsils of Ujjain district were analysed in the laboratory for electrical conductivity (EC), pH, cations (Na+, K+, Ca2+ and Mg2+) and anions (CO32-, HCO3-, Cl- and SO42-). The ground water quality map of the district was generated using ERDAS-IMAGINE 8.7 software showing different categories.