Silver nanoparticles are transformed by sewage treatment

Prior posts have noted a number of issues related to nanoparticles. Silver nanoparticles are used in hundreds of consumer products, including food storage containers, clothing, computer keyboards, cosmetics, pillows, cell phones, and medical appliances, because of their antimicrobial properties. Because...

Ninth Circuit rules that owners of storm water systems (e.g., cities, counties, districts) are liable for discharges of polluted stormwater into rivers and ocean

It is well known that stormwater gathers a variety of pollutants as it flows across the landscape and even through stormwater drainage systems. See, for example, http://cfpub.epa.gov/npdes/home.cfm?program_id=6 and http://www.epa.gov/owow_keep/NPS/index.html . In NRDC v. County of Los Angeles, Ninth...

EPA Releases DMR Pollutant Loading Tool

By E. Lynn Grayson, Partner, Jenner & Block EPA recently released the Discharge Monitoring Report (DMR) Pollutant Loading Tool designed to help individuals determine who is discharging, what pollutants they are discharging and how much, and where they are discharging. The tool calculates pollutant...