The Puget Sound Clean Air Agency (PSCAA) is soliciting quotations from experienced air quality equipment vendors that are qualified and willing to sell nephelometer equipment that measures light scattering and can be used to estimate PM2.5 pollution levels.

Electronic (preferred) or written responses are due at the Agency’s office by noon on Tuesday, June 17, 2025. To download a copy of the RFQ 2025-018 packet, go to the Puget Sound Clean Air Agency’s webpage at:http://www.pscleanair.org/302/Open-Requests-for-Proposals-RFPRFQ. This material is available in alternate formats for individuals with disabilities. Contact Matt Harper 206-689-4009 or toll-free 1-800-552-3565, ext. 4009 to request a copy.