Showing posts with label schools. Show all posts
Showing posts with label schools. Show all posts

2/8/16


 

Buyer Beware Of 3-D Printer Emissions
Source: Chemical & Engineering News, January 25, 2016
Author: Jyllian Kemsley 

As costs of three-dimensional printers drop and the devices increasingly make their way into offices, schools, and homes, users should consider how to limit exposure to emissions of particles and gases in the space where the printer is located. This caution stems from research by a team led by Brent Stephens of Illinois Institute of Technology and Neil E. Crain of the University of Texas, Austin ... . The researchers tested the emissions of five commercially available desktop 3-D polymer-extrusion printers for ultrafine particles, which have a diameter less than 100 nm, and volatile organic compounds, including caprolactam and styrene. They used the printers to make a standard part from nine different polymer filament starting materials. The emissions varied more by the type of material than they did by the type of printer. Modeling the emissions in a 45 m3 air-conditioned office, the team predicts that caprolactam and styrene would reach concentrations that could be harmful to health.
Read more...

See original article in Environmental Science & Technology, "Emissions of Ultrafine Particles and Volatile Organic Compounds from Commercially Available Desktop Three-Dimensional Printers with Multiple Filaments".

6/11/15

The more they dig, the more they find: DDT cleanup continues for mid-Michigan town. http://www.environmentalhealthnews.org/ehs/news/2015/jun/michigan-superfund-ddt-epa-birds-health-pesticide
Federal, state officials are making progress cleaning up harmful chemicals in St. Louis, Michigan, but more work remains and there is still no health study.*
June 11, 2015 By Brian Bienkowski Environmental Health News

ST. LOUIS, Mich. — During recent summers birds were found littered around the town, poisoned with a long-banned pesticide.

This summer? The school athletic grounds, where kids practice football and softball, are being dug up after it was discovered they too are contaminated with DDT.

It is the latest chapter in a seemingly endless effort to rid this small, rural mid-Michigan town of toxic chemicals that have plagued it since the 1960s. And, despite wildlife deaths and some lawns contaminated to levels deemed harmful to humans, no one is conducting health testing on DDT exposure in the community.

Schoolyard contamination
St. Louis, an hour drive north of state capital Lansing, has long dealt with contamination left behind by the Velsicol Chemical Corp., formerly Michigan Chemical, which manufactured pesticides until 1963 and abandoned loads of DDT, which was banned 40 years ago.


The pesticide was made famous by Rachel Carson’s book Silent Spring, which exposed the hazards of DDT, especially for birds, in 1962. Populations of bald eagles and other birds crashed when DDT thinned their eggs, killing their embryos. Exposure also has been linked to multiple health problems in humans, especially developing babies.

*Read full article

1/8/13


In Maine, concern over pesticide use at schools rise
The use of chemicals on school properties and other public areas has become a matter of growing public concern in a number of Maine communities. More than half of 200 schools surveyed in the state still use chemicals on school yards and athletic fields, even though state law requires that they move toward reducing pesticides.
Portland Press Herald, Maine
http://www.pressherald.com/news/concern-over-pesticide-use-at-schools-rises_2013-01-02.html

Report, "A Call for Safer School Grounds: A Survey of Pesticide Use on K-12 Public School Grounds in Maine," is at  http://toxicsactionorg.live.pubintnet-dev.org/sites/default/files/SafeSchoolGroundsReport.pdf  - - - it was released in mid-December.
To join or leave this listserv, visit the School IPM WWW site at http://schoolipm.ifas.ufl.edu/ and follow the instructions under "School IPM Listserv."

1/2/13

Beyond Pesticides



Ask your Member of Congress to support SEPA. The School Environment Protection Act (SEPA), HR 4225, is needed to protect children from toxic pesticides used in and around schools.

Beyond Pesticides' Tools for Change


Links to online resources and campaigns, also pest management information. http://beyondpesticides.org/

12/16/11