Air Quality Sensor Performance Evaluation Center

Sensor News

  • Who Gets to Breathe Clean Air in New Delhi?

    Dec 22, 2020
    New Delhi 2020
    Using low-cost sensors, PM2.5 pollution exposure was monitored throughout the course of a typical school day for two children from different socioeconomic backgrounds in New Delhi, India. Monu, 13, lives in a hut in a slum near the polluted Yamuna River in New Delhi, does not have access to air purifiers, and experiences about four times as much air pollution in a day than 11-year old Aamya, who lives in an upper-middle-class neighborhood and has access to air purifiers at both home and school. Learn moreLink to external website.
  • AQ-SPEC Library Program

    Nov 08, 2019

    South Coast AQMD’s AQ-SPEC is piloting a Library Program that will maintain and lend-out air quality sensors. Through this program, members of the public will be able to request and borrow one or multiple low-cost air quality sensors as well as materials to guide the use of these sensors and to support air quality and environmental education.

    Initially this program is only open to educational audiences who will be using the sensors for educational and informational purposes, such as K-12 teachers and students. However, we hope to eventually expand the program and make it available to the broader public and community groups.

    Come learn more about the new program and check out a few low-cost air quality sensors at the DTLA Mini Maker Faire.

    When: Saturday, December 7, 2019 – 10 a.m. to 4 p.m.
    Where: Central Library · 630 W. 5th Street, Los Angeles, CA 90071
    More information:

  • AQ-SPEC at the Sensors Expo & Conference 2019

    Jan 30, 2019


    AQ-SPEC is exhibiting at the Sensors Expo & Conference that is focused exclusively on sensors and sensor-integrated systems.

    Mobile air monitoring platforms equipped with fast-response monitors allow for collecting air pollution data at high spatiotemporal resolution.
    Stop by our Booth #1624 to:

    • Gather insights into designing and developing an advanced air quality monitoring mobile platform, the integration of on-board fast-response analyzers and sensors, challenges, and solutions.

    • Receive guidance for proper sampling, data collection and validation to ensure data quality and representativeness of mobile ambient air measurements

    • Hear about the potential of sensors and mobile air monitoring platforms to provide air pollution data that is spatially extensive yet simultaneously granular

    Join us in the heart of Silicon Valley - June 25-27, 2019 at the McEnery Convention Center in San Jose, California. Learn moreLink to external website.

  • Peer Review and Supporting Literature Review of Air Sensor Technology Performance Targets

    Oct 26, 2018

    A comprehensive literature review of recent published accounts of low cost sensor use and their reported performance measures was published in October 2018 by Williams et al. at the U.S. Environmental Protection Agency Office of Research and Development. This work focused on informing the development of performance requirements for air monitoring instruments that measure particulate matter (PM2.5 and PM10), carbon monoxide (CO), nitrogen dioxide (NO2), sulfur dioxide (SO2), and ozone (O3). Learn moreLink to external website.
  • SCAQMD visit at the US Embassy in Paris

    Jul 18, 2018

    As a kick-off to the State Department’s Air Quality Awareness Week, the Environment, Science, Technology, and Health section in Paris organized a conference in partnership with ATMO France and AirParif on the topic of air quality. The Embassy of the United States in France invited SCAQMD to participate as a speaker to provide an overview of air quality in Southern California and discuss the history of air quality in the Los Angeles Basin, current monitoring capabilities, and the use of advanced measurement technologies including low-cost sensors.

    Learn more about SCAQMD's visit.
  • Measuring Air Pollution in Southern California Using Low-Cost Sensors

    Jun 05, 2018

    The recent emergence of smaller, portable, low-cost air quality sensors in the marketplace has provided new opportunities for the public to measure air quality. To assist local and state air quality managers, community groups, researchers and others, EPA is conducting studies to evaluate and develop air sensor technologies and provide information on using and interpreting sensor data. Results are being made available on EPA’s online Air Sensor Toolbox. One research project is the development of an air monitoring sensor kit for communities called the ‘Citizen Science Air Monitor’ or CSAM.  The CSAM includes lower cost, commercially available parts that can be customized for different uses. In June 2016, EPA collaborated with the South Coast Air Quality Management District’s Air Quality Sensor Performance Evaluation Center (AQ-SPEC) in California to study the performance of the CSAM sensor pods. Designed by EPA, the pods measure ozone, fine particulate matter (PM2.5), temperature, and relative humidity. Learn moreLink to external website.
  • AQ-SPEC evaluates Aeroqual’s AQY sensors

    May 25, 2018

    All manufacturers of low-cost air sensors are invited to send their equipment to AQ-SPEC for testing. To date, leading manufacturers such as Vaisala, AQMesh, Met One, TSI, and of course Aeroqual, have had their air sensors evaluated, showing an increasing openness to scrutiny and transparency within the air quality monitoring industry. Learn moreLink to external website.
  • L.A. Confidential – the highs and lows of building a 100 air quality sensor network in Los Angeles

    Mar 20, 2018

    Aeroqual Ltd of New Zealand has teamed up with South Coast Air Quality Management District (South Coast AQMD), UCLA and several Los Angeles community groups to set up a network of 100 air quality sensors in communities throughout the Greater Los Angeles area. To date, more than half of the sensors have been deployed, with three months of data coming in. Interest is high in the network, in the US and abroad. Learn moreLink to external website.
  • NASA's JPL Using Fresno as a Test Bed for Air Quality Research

    Feb 07, 2018
    On a rooftop in Central Fresno stands a forest of air quality monitors. Pipes stick out from the roof, and they’re attached to around a dozen silver and white instruments that look almost like street lights. They’re measuring everything from the size of particulate matter to ozone. Learn moreLink to external website.
  • What’s In Your Air? New Low-Cost Devices Monitor Valley Air Pollution

    Jan 25, 2018

    It’s after hours at Malaga Elementary School in southeast Fresno. On this gray January day, air quality is moderate, and kids are playing capture the flag. But many children play outside even when particle pollution reaches dangerously high levels-a relatively common occurrence in Valley winters. On those days, Nayamin Martinez of the non-profit Central California Environmental Justice Network says her heart breaks when she sees kids playing outside. “I’m a mother of two children, one of them with asthma, and I feel so desperate,” she says. Learn moreLink to external website.
  • As wildfires worsen, technology makes tracking smoke in air easier

    Jan 03, 2018
    SF chronicle

    With wildfire danger expected to rise further over the years as global warming intensifies, the race is on to produce more detailed maps of smoke pollution. Regional authorities have stationed 16 permanent monitors for fine particles - an especially harmful ingredient of wildfire smoke - around the Bay Area. But low-cost sensors, satellites and other tools are rapidly evolving. Learn moreLink to external website.
  • Google shares Los Angeles and San Francisco air pollution data from Street View cars

    Nov 08, 2017
    Aclima Google Air Quality data
    Back in 2015, Google announced a project to equip its Street View cars with air pollution sensors from Aclima to map air quality. Focusing on San Francisco, Los Angeles, and the Central Valley regions of California, the company today announced those results.
  • Envirosuite at "Making Sense of Sensors"

    Oct 11, 2017

    On September 27-28, Envirosuite exhibited as a platinum sponsor at the South Coast Air Quality Management District (SCAQMD) ‘Making Sense of Sensors’ Conference at its headquarters in Diamond Bar, California. The conference was co-sponsored by Bay Area Air Quality Management District (BAAQMD) and California Air Pollution Control Officers Association (CAPCOA). Key members of Envirosuite’s US team as well as the company’s founders were in attendance. Learn moreLink to external website.
  • Air Sensors Infographic by Santa Barbara County APCD

    Sep 21, 2017

    The Santa Barbara County Air Pollution Control District (SBCAPCD) developed an infographic about air sensors. Learn moreLink to external website.
  • Infographic: Buying an Air Quality Sensor

    Sep 12, 2017

    Infographic: 4 Questions to ask before buying an air quality sensor. Learn moreLink to external website.
  • Assessing Urban Air Quality project

    Aug 18, 2017

    The Minnesota Pollution Control Agency will use air quality monitoring sensors to gather data over the two years for their "Assessing Urban Air Quality" project. Learn moreLink to external website.
  • Army of Air-Quality Sensors to Offer Lafayette, La., and Baltimore, Md. Glimpses of Ozone, Humidity Levels

    Aug 08, 2017

    Smart Cities:
    Baltimore, Md., and Lafayette, La., will soon have detailed air-quality data buzzing in from monitors mounted across both cities, offering real-time glimpses of ozone, temperature, humidity and particulate levels. Learn moreLink to external website.
  • A Brief History of Air Quality Sensors

    Jun 14, 2017

    Handheld, low-cost sensors are being developed, sold, and used by 10,000s of people seeking to measure the quality of the air they breathe. Tim Dye of TD Environmental created a history timeline that traces the important and pivotal events shaping the air sensor revolution. Learn moreLink to external website.
  • Environmental Defense Fund - Air Sensor Workgroup

    Jun 02, 2017
    To support the low-cost sensor revolution and to understand the impacts of air quality on life, a well-structured data management system is necessary. Data from all sensors in a centralized database are needed so that advanced analytics can be performed and solutions to cleaner air can be identified. To achieve this goal, the Air Sensor Workgroup at Environmental Defense Fund has started developing a Data Platform and is committed to make it open source and open access while maintaining necessary privacy and security of data. Learn moreLink to external website.
  • It’s Time to Give Air Quality the Attention It Deserves

    Mar 23, 2017

    Each day of every year, a quiet disaster unfolds in households and hospitals across the world. More than 10,000 lives are lost worldwide every 24 hours as a direct or indirect consequence of poor air quality. Learn moreLink to external website.
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