Author Archives: Bill Cassells
Evolution of PM2.5 Measurements and Standards in the U.S
National Ambient Air Quality Standards (NAAQS) were first established in the United States to protect public health and welfare, and the concept has been adopted in China and many other countries. For particulate matter (PM), the NAAQS indicator evolved from …
Posted in Uncategorised
Leave a comment
P600 “Methods for Testing the Performance of LEV” – Recently Launched BOHS LEV Course
Latest in the P600 series of LEV course and, funnily enough, this one is called P600! OXYL8 have added this course to the suite of LEV training courses we offer. This one-day event has been designed to enable delegates to …
Posted in Uncategorised
Leave a comment

