We are pleased to announce the release of our new model, ADMS-Puff. ADMS-Puff is a Lagrangian puff model for dense gas releases. Effects of complex terrain and spatially-varying meteorology can be modelled. Output concentrations, flammability limits, and instantaneous and time-integrated health limits can be calculated by the model. Please see here for more details.
DNV GL releases 2017 PV Module Reliability Scorecard
DNV GL, the world’s largest resource of independent energy experts and certification body, has released its third annual PV Module Reliability Scorecard report, presenting the most complete publicly-available comparison of PV module reliability test results. Although the dramatic module price drop of recent years has helped to accelerate PV industry growth, concerns over cost reduction at the expense of module quality have persisted. As project financiers rely on performance prediction over several...
USGS Assessment of Brackish Water Could Help Nation Stretch Limited Freshwater Supplies
A newnationwide assessmentby the U.S. Geological Survey suggests that the nation’s brackish groundwater could help stretch limited freshwater supplies. This study, the first of its kind in more than 50 years, found that the amount of brackish groundwater underlying the country is more than 800 times the amount currently used each year. With issues like drought, groundwater depletion, dwindling freshwater supplies, and demand for groundwater expected to continue to rise, understanding brackish groundwater...
Spectro Scientific releases new version of FluidScan Handheld Infrared Oil Analyzer
Spectro Scientific, one of the world’s largest suppliers of oil, fuel, and processed water analysis instrumentation and software, has introduced Version 5 of itsFluidScan portable infrared oil analyzer technology.FluidScanoil chemistry analysis enables users to determine when oil is no longer fit for use due to liquid contamination or other degradation. Lubrication abnormalities are a major cause of equipment downtime and failure. FluidScanVersion 5 includes a variety of new features that improve performan...
TSCA: EPA releases proposed chemical risk evaluation process under new TSCA
On January 19, 2017, the U.S. Environmental Protection Agency (EPA) proposed a process for conducting risk evaluations to determine whether a chemical substance presents an unreasonable risk of injury to health or the environment, including an unreasonable risk to a potentially exposed or susceptible subpopulation, under the conditions of use. 82 Fed, Reg. 7562. The process would not consider costs or other non-risk factors. Risk evaluation is the second step, after prioritization, in a new process of existing...
EPA releases long-awaited final report on hydraulic fracturing
The U.S. Environmental Protection Agency inDecemberits long-awaitedfinal reporton the effects of hydraulic fracturing on drinking water resources in the United States. The report provides a synthesis of information on impacts of unconventional oil and gas operations on groundwater and surface water. The report is intended to advance the scientific foundation to help states and others better protect drinking water sources and identify uncertainties and data gaps. The report does not provide a risk assessment,...