This pilot study was conducted to assess the utility of using a health insurance database for the automated detection of waterborne outbreaks of acute gastroenteritis (AGE). The weekly number of AGE cases for which the patient consulted a doctor (cAGE) was derived from this database for 1,543 towns in three French districts during the 2009–2012 period. The method we used is based on a spatial comparison of incidence rates and of their time trends between the target town and the district. Each municipality was tested, week by week, for the entire study period. Overall, 193 clusters were identified, 10% of the municipalities were involved in at least one cluster and less than 2% in several. We can infer that nationwide more than 1,000 clusters involving 30,000 cases of cAGE each year may be linked to tap water. The clusters discovered with this automated detection system will be reported to local operators for investigation of the situations at highest risk. This method will be compared with others before automated detection is implemented on a national level.
Case study - Water quality in the Mississippi Basin
A resilient method for monitoring water quality and nitrate levels in the harsh aquatic environment of the Mississippi River, in section 16, was required by the University of Iowa -IIHR. The monitoring of continually accurate water quality data was important for analysis, in conjunction with the diurnal mussel study of the University of Iowa.Monitoring water over extended periods of time in this section of the Mississippi can be difficult due to build-up of aquatic sediments and zebra mussels on instruments. Due...
Case study - Groundwater monitoring around hydraulic fracturing sites in Colorado
Hydraulic fracturing or ‘Fracking’ has become more prevalent and controversial in the US in recent years. More than 90 percent of new wells in the US are completed using this method. While it is endorsed by some as a game-changer that promises an increase in the nation’s economy due to energy independence, job creation, and lower energy prices; others are calling for a temporary moratorium or a complete ban on fracking due to environmental concerns.The US government has identified and employed...
Case study - Monitoring underground water resources in Brazil
Monitoring underground water resources in BrazilThe Coca-Cola FENSA plant in Mogi das Cruzes is responsible for bottling mineral water supplied from two ground water sources. The plant is a benchmark for environmental sustainability projects. With this pioneer project the Mogi das Cruzes plant was the first of the Coca-Cola FENSA Group to install an online analysis monitoring, using the OTT PLS and OTT DuoSens datalogger, along with other Hach technologies. Monitoring Solution The monitoring system consists of...
Case study - 49 stations along the Mekong River - Cambodia - Vietnam - Laos - Thailand
The Mekong River Commission Secretariat (MRCS) is a Basin Management Organization formed through the joint-cooperation of Cambodia, Lao PDR, Thailand and Vietnam. China and Myanmar are also partners with the MRCS.The organization aims at sustainable development on managing water resources & sharing info among the Mekong member countries. In cooperation with the World Meteorological Organization, MRC established a real-time Hydro-meteorological network, funded by the French Development Agency (FDA).The main...
5 ways to conserve water this winter
Water conservation is something we harp on during the summertime, but what about during the winter? When the irrigation systems shut down, it’s easy toput conservation on the back burner while indoor water waste continues to occur. According to the U.S. Geological Survey, the average person uses 80-100 gallons per day for everything from cooking, to showering and flushing the toilet. While there are a number of ways to integrate water conservation into your daily routine, here are five tips that will...