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  1. www.epa.gov › aqsAir Quality System (AQS) | US EPA

    17 Σεπ 2024 · AQS is EPA's repository of ambient air quality data that assists in air quality assessments, designations, modeling for permit review and prepare reports for Congress as mandated by the Clean Air Act.

    • AQS Java Memo

      EPA MEMORANDUM. From: Robert Coats, U. S. EPA, AQS Federal...

    • AQS Code List

      Quality Assurance Project Plans (QAPPS) Contains a list of...

    • AQS Users Guide

      The AQS User Guide is designed to familiarize the user with:...

    • Obtaining AQS Data

      Air quality data from the AQS system is consolidated at the...

  2. 19january2021snapshot.epa.gov › aqsAir Quality System (AQS) | US EPA

    28 Οκτ 2020 · The Air Quality System (AQS) contains ambient air pollution data collected by EPA, state, local, and tribal air pollution control agencies from over thousands of monitors.

  3. aqs.epa.gov › aqsweb › airdataDownload Files | AirData - US EPA

    This page contains large files of data intended for use by people who understand the EPA ambient air quality monitoring program and data. Other sources of data are available. The data available here is also available via an API.

  4. aqs.epa.gov › aqsweb › documents1 Introduction — About AQS - US EPA

    This document is an overview of the structure and contents of the EPA’s Air Quality System (AQS) database. It answers questions many first-time data users have about the availability of data, the geographic and temporal scope, and how its organized and processed.

  5. aqs.epa.gov › aqsweb › documentsData Mart | AQS | US EPA

    5 Σεπ 2018 · The AQS Data Mart is a database containing all of the information from AQS. It has every measured value the EPA has collected via the national ambient air monitoring program. It also includes the associated aggregate values calculated by EPA (8-hour, daily, annual, etc.).

  6. www.epa.gov › aqs › obtaining-aqs-dataObtaining AQS Data | US EPA - U.S. Environmental Protection...

    16 Ιαν 2024 · Air quality data from the AQS system is consolidated at the AirData website. That site has pre-generated files of extracted AQS data at the annual, daily, and hourly level. It also has several reports, graphs, and maps that you can generate based on specific selections.

  7. www.epa.gov › outdoor-air-quality-dataAir Data: Air Quality Data Collected at Outdoor Monitors Across...

    4 ημέρες πριν · Outdoor Air Quality Data. Use the tools on this site to access recent and historical data. For current air quality, visit AirNow.gov. During fire events, use the Fire and Smoke map. The daily air quality tracker lets you compare recent AQI values with historical data.

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