Arsenic a global threat to health
Arsenic in drinking water threatens the health of people in over 70 countries, even developed nations such as the UK and USA, according to research presented at the Royal Geographical Society’s annual conference.
Photo courtesy of the World Bank
Arsenic in drinking water threatens the health of people in over 70 countries, even developed nations such as the UK and USA, according to research presented at the Royal Geographical Society’s annual conference. Peter Ravenscroft, of the University of Cambridge’s Department of Geography, told a London audience about 137 million people are exposed to unsafe levels of arsenic above the WHO guideline of 10 ppb, and 57 million use water supplies over 50 ppb. Predictions of new arsenic pollution in southeast and southwest Asia, as well as parts of South and Central America and Africa, prompted a call by scholars for priority testing of water sources worldwide. Bangladesh is thought to be the worst affected country, where hundreds of thousands may die from arsenic poisoning. Researchers at Manchester University also published a report in the journal Nature on ways arsenic enters deep groundwaters, focusing on the role of bacteria in its leachingfrom surrounding geology in low-oxygen environments - which may allow for identification of likely risk areas.
Royal Geographical Society
Enquiry No. 100
WRT radium removal system added near Chicago
To meet drinking water needs and tighter regulatory restrictions, Water Remediation Technology LLC (WRT) is installing and operating its third radium-removal water treatment system in the community of Elburn, Illinois, USA, 45 miles west of Chicago. Under a 20-year contract, it follows two more installed in 2006 at the community’s two other active wells. Well water radium concentration prior to treatment averaged about 19 pCi/L. USEPA guidelines allow for a maximum of only 5 pCi/L, and the current WRT treatment systems have reduced radium concentration to an average 0.46 pCi/L. The company also recently signed contracts for a fourth radium-removal system in the state of Wisconsin (in Pewaukee) and its first in New Mexico (in Cañoncito).
Water Remediation Technology, LLC
Wheat Ridge, Colorado, USA
Enquiry No. 101
From the field to the office, the Diver-NETZ system, from Schlumberger Water Services (SWS), offers a complete package of tools for groundwater professionals to wirelessly connect monitoring networks. Expandable and ready to work with existing Diver networks as well as Waterloo Hydrogeologic Software, components are designed to streamline project workflows, enabling user’s to manage groundwater resources for the long-term. This includes:
- Connecting wirelessly to groundwater monitoring networks
- Improving data collection in the field, including level, temperature and conductivity
- Achieve precise measurements of groundwater conditions with a full line of dataloggers
- Mapping, analyzing and reporting data using a comprehensive software suite
- Storing, visualizing, and reporting via a secure, online data management service.
Schlumberger Water Services
Enquiry No. 102