Research & Data

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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Washington Air Quality Advisory

The Washington Air Quality Advisory (WAQA) tells you when air quality is healthy or unhealthy.

Air quality monitoring network

A network of air monitoring stations to measure air pollution throughout the state.

Air Quality Burn Permitting System

(SAW account required)

Air Quality Application Portal

(SAW account required)

Agricultural Burning & Research Task Force

The Agricultural Burning Practices and Research Task Force (Agricultural Task Force) is established by the Washington State Clean Air Act.

Agenda 11/29/17

This is the agenda for the 11/29/17 stakeholder meeting.

Withdrawal letter (WSR 16-06-072) 02/26/16

This the withdrawal notice for the original CR-102 filed on January 5, 2016.

Rulemaking Adoption Notice (WAC 173-442; WAC 173-441) 09/15/16

This is a rulemaking adoption (CR-103) for WAC 173-442 Clean Air Rule; WAC 173-441 Reporting of Emissions of Greenhouse Gases.

Draft rule 11/29/17

This is the draft rule from 11/29/17.

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 06/27/17

This is draft rule language for WAC 173-400 on 06/27/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Draft rule language for WAC 173-455 (WAC 173-455; WAC 173-400) 06/27/17

This is draft rule language for Chapter 173-455 WAC, Air Quality Fee Rule; Chapter 173-400 WAC, General Regulations for Air Pollution Sources, 6/27/17 version.

Draft fee schedule (WAC 173-455; WAC 173-400) 06/27/17

This is a draft fee schedule on 06/27/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Draft fee by source (WAC 173-455; WAC 173-400) 06/27/17

This shows draft fee amounts on 06/27/17 for registration sources for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Presentation slides (WAC 173-455; WAC 173-400) 03/21/17

This is a powerpoint presentation for a meeting on 3/21/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Meeting summary (WAC 173-455; WAC 173-400) 03/21/17

This is a summary of a meeting on 3/21/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Draft rule language for WAC 173-455 (WAC 173-455; WAC 173-400) 04/26/17

This is draft rule language for WAC 173-455 Air Quality Fee Rule

Agenda workgroup mtg (WAC 173-455; 173-400) 04/26/17

This is an agenda for a workgroup meeting on 4/26/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Draft rule language for WAC 173-400 (WAC 173-455; WAC 173-400) 04/26/2017

This is draft rule language for WAC 173-400 General Regulations for Air Pollution Sources.

Meeting summary (WAC 173-455; WAC 173-400) 04/26/17

This is a summary for a meeting on 4/26/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

Agenda workgroup mtg (WAC 173-455; 173-400) 05/24/17

This is an agenda for a workgroup meeting on 5/24/17 for WAC 173-455 Air Quality Fee Rule; WAC 173-400 General Regulations for Air Pollution Sources.

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