A recent article in WaterWorld describes how nitrates found in groundwater may take decades to get filtered out. USGS researchers discovered that groundwater nitrate levels were above expected levels, despite the reduction of nitrogen-based fertilizer in the areas tested.
“In this study, USGS scientists closely examined surface and ground waters at seven study sites from across the nation to determine the portion of stream nitrate derived from groundwater… The slow release of groundwater nitrate to streams may also affect the water quality of large rivers. For example, increases in nitrate concentrations during low and moderate flows in large rivers in the Mississippi River Basin have been observed to be greater than or comparable to increases in nitrate concentrations during high flows.”
Nitrate is a naturally occurring form of nitrogen found in soil. It is also often found in fertilizer, since most crop plants require high levels of nitrates to produce high yields. Issues can arise when water runoff carries excess nitrates from agricultural and urban sources Continue reading →
Hanna Instruments is pleased to announce its newest product, the HI 761 Checker®HC Chlorine Ultra-Low Range. Designed to measure super low range chlorine levels, the HI 761 is the newest addition to the Checker HC line of handheld colorimeters.
This lightweight, portable meter is a fast, accurate and affordable alternative to chemical test kits. The HI 761 Checker Handheld Colorimeter is great for water quality tests, water purification tests, educational use and environmental field applications.
For more information on the new HI 761, click here.
The National Groundwater Association has produced a water-testing brochure for household water well owners living near oil and gas development and completion activities, including hydraulic fracturing.
This free resource includes suggested options for water well owners, information on water quality testing, as well as some additional resources for water quality and testing information.
We are pleased to announce our newest product, the HI 749 Checker®HC Chromium VI – Low Range. Designed to measure low range chromium VI levels in fresh water, the HI 749 is the newest addition to the Checker HC line of handheld colorimeters. This lightweight, portable meter is a fast, accurate and affordable alternative to chemical test kits.
The HI 749 is great for water quality tests, plating applications, educational use and environmental field applications.
For more information on the new HI 749, click here.
Hanna Instruments is pleased to introduce our latest product, the HI 2314. The HI 2314 is the latest in our line of redesigned Bench-Top Meters. Designed to measure Conductivity, this unit includes manual temperature compensation (MTC) and manual calibration.
The HI 2314 replaces EC 214 and has a newly designed mold featuring a large, easy to use LCD, built-in solution holders and an attractive redesigned case.
Applications for the HI 2314 include:
- Municipal drinking water
- Fountain solutions for the printing industry
- Food processing and more
For more information on the new HI 2314, click here.
A recent UN-Water press release outlines preliminary information from a United Nations survey demonstrating how water reform over the past twenty years has had “significant impacts on development, including improvements to drinking water access, human health and water efficiency in agriculture”
The report is based on survey information gathered by the UN from 130 countries across the globe. Of the countries surveyed, 90 percent reported positive impacts from their water management efforts.