Outdoor air pollution case study

Outdoor air pollution is understood to have a major impact on human health. Monitoring air pollution is the first step to managing air pollution. The following case studies give real life examples of how customers use Aeroqual’s instruments to monitor outdoor air pollution.

Creating a Network of Clean Air Urban Walking Routes Starts with Real-Time Air Monitoring

A prominent UK non-profit and a leading environmental data analytics company used handheld air quality monitoring systems to design a series of environmentally friendly

City Assures Community with Real-Time Air Quality Dashboard

The City of Dallas used a public dashboard to demonstrate how real-time actionable data was used to mitigate emissions of particulate matter and odors,

Being a Good Neighbor Requires Real-Time Alerts and Defensible Air-Quality Data

A leading national developer used integrated weather, noise, and particulate matter monitoring to produce credible air quality data and achieve regulatory compliance.

ZED and Grosvenor Group

ZED used Urban Air Quality Monitors to help ensure customer health and well-being outside some of Sweden's busiest shopping centers.

Quandary Consultants VOC Monitoring in Colorado

Quandary Consultants, LLC a Colorado-based consultant used a network of VOC monitors and secure Cloud-based interface to deliver defensible and actionable air quality data

Real-Time Monitoring Empowers Angelenos, Protects Communities During Reclamation Project on Nation’s Largest Municipal Utility

A global consulting firm used integrated weather, noise, vibration, and particulate matter monitoring to protect communities and ensure regulatory compliance during demolition and reclamation

Real-Time Air Monitoring Protects New Yorkers During Multi-Billion Dollar Rail Expansion

A New York-based consulting services firm used integrated weather, noise, and particulate matter monitoring to protect communities and ensure regulatory compliance during the redevelopment

Saint Gerald Catholic School

Saint Gerald School students measure ground-level ozone using the Series 500 portable monitor thanks to MAPA’s Little Steps Big Impact campaign.

Georgia Environmental Protection Division (EPD)

Co-location field trial satisfies Georgia EPD of viability of Near Reference sensor-based air monitors for smog air quality assessments.

Shaoxing EPA

The Shaoxing EPA used the Dust Sentry to build its town-level PM2.5 monitoring network to comply with China's new air quality monitoring regulation.

Remediation Monitoring Protects Communities, Ensures Compliance in Southern California

International environmental engineering firm, SCS Engineers, use the Dust Sentry to comply with SCAQMD Rule 1466 at their clients’ remediation site in LA.

Colgate University

Students at Colgate University use Portable Particulate Monitor to get real-life, hands-on experience measuring air pollution in science courses.

Modern Geosciences Texas Landfill Air Quality Study

Modern Geosciences, trusted environmental advisors, delivered an air quality study within budget for a major US landfill complicated by localized emission sources.

Los Angeles Community Air Monitoring Network

The project has brought together several organisations: SC AQMD with a STAR grant from U.S. EPA & Aeroqual, as part of a government-funded research

Connecticut Department of Energy & Environmental Protection

CT DEEP is responsible for protecting the environment and health for more than 3.5 million residents of the state.

ERM Indonesia

ERM is the premier environmental and social consulting firm in Indonesia, working with leading oil and gas, mining, and manufacturing companies throughout the archipelago.

SISK Group

SISK Group is an international construction company. Following the successful redevelopment of Wembley Arena, SISK was awarded several projects for the Wembley Park Regeneration


AECOM is a global design, engineering, construction and management consultancy, with nearly 100,000 employees in 150 countries on seven continents.

RSK Group Ltd

RSK, in collaboration with Bureau Veritas (BV) Iraq, was commissioned to deliver an Environmental Impact Assessment (EIA) for the Peshkabir Oilfield in Kurdistan, Iraq.

Tanzania Industrial Research and Development Organization

TIRDO undertook an Environmental and Social Impact Assessment for a geothermal site to ensure it met the Tanzanian Government’s legal requirements.

Department of Industrial Works, Thailand

The Department of Industrial Works (DIW), a division in the Thai government, is responsible for ensuring companies comply with environmental protection legislation.

Ship-Based Air Monitoring Network Aids Development of Offshore Energy Facility

A global environmental consultancy used a series of handheld air monitoring systems to ensure regulatory compliance during the development of an offshore energy production

University of Birmingham

Dr Delgado-Saborit from The University of Birmingham is an expert in personal exposure studies. Her latest research project aimed at understanding daily

New York City Department of Environmental Protection

The New York City Department of Environmental Protection (DEP) is the agency responsible for New York’s environment.

Tonglu Environment Protection Agency

Tonglu Environmental Protection Agency (EPA) is the organisation responsible for keeping Tonglu County’s environment pristine.

New South Wales Office of Environment and Heritage

OEH supports the community, business and government in protecting the environment in New South Wales.

Delhi Pollution Control Committee

Delhi Pollution Control Committee is responsible for the measurement and management of air quality in India's capital city.

Ali Mousa & Sons Group

Ali Mousa & Sons Crusher Company own a world class crusher quarry in Fujairah. It operates 24 hours a day producing high quality aggregate

AngloGold Ashanti

AngloGold is a multinational mining company with a strong commitment to the health and well-being of the communities it touches.


Yacimientos Petrolíferos Fiscales (YPF) is the national energy company of Argentina. The largest four refineries that they run are located in a province of

URS Corporation

URS is a global engineering consultancy headquartered in the USA with over 46,500 staff located around the world. Aeroqual was contacted by their

STI Sensor Network

The San Joaquin Valley Air Pollution Control District contracted the California based air quality consultancy, Sonoma Technology, Inc (STI) to carry out an

Road Metals Quarry

Road Metals is one of the most respected contracting businesses in New Zealand. The company operates several sites across the South Island

Ridley Coal Terminals

Ridley Coal runs a bulk handling terminal on the West Coast of Canada, which is a vital link in the energy supply chain between

Niger Delta

David Ishmael is an experienced consultant working in Nigeria. He has conducted numerous air quality studies in the oil, mining and manufacturing

Emirates Global Aluminium

Emirates Aluminium is a state-of-the-art aluminium smelter that produce 1.3 million tonnes per annum, making it one of the largest single site smelters in

Egnatia Odos Motorway

The Egnatia Motorway traces its origins back to Roman times and remains a vital link between Greece and the rest of Europe.

State University of the Amazonas

The city of Manaus is the most populous city of the Amazonas and has become a major industrial centre for

Dubai Municipality Air Quality Network

Dubai is known throughout the world as a bold and forward-thinking city. When Dubai Municipality needed to upgrade their air quality network they chose

Types of outdoor air pollution

There are many different types of outdoor air pollution. Measuring them all would be too expensive so regulators focus on a smaller group of common air pollutants, sometimes known as the criteria pollutants. The following is a summary of the main types of outdoor air pollution.

Nitrogen Dioxide

Nitrogen dioxide (NO2) is a criteria pollutant and contributes to the formation of photochemical smog, with significant impact on human health. Breathing raised levels of NO2 inflames the lining of the lungs and reduces immunity to lung infections. The result is wheezing, coughing, colds, flu and bronchitis, and more frequent and intense asthma attacks. The major source of NO2 is from combustion of fossil fuels: coal, oil and gas. Most of the nitrogen dioxide in cities comes from motor vehicle exhaust. Other sources of nitrogen dioxide are petrol and metal refining, electricity generation from coal-fired power stations, other manufacturing industries and food processing.

Sulfur Dioxide

Sulfur dioxide (SO2) is a criteria pollutant. Short-term exposure to SO2, ranging from 5 minutes to 24 hours, is linked with adverse respiratory effects including bronchoconstriction and increased asthma symptoms. SO2 is also a major precursor to fine particulate soot and acid rain. Primary sources include fossil fuel combustion at power plants and other industrial facilities. Secondary sources include industrial processes such as extracting metal from ore, and the burning of high sulfur-containing fuels by locomotives, large ships, and off-road equipment.

Carbon Monoxide

Short-term exposure to carbon monoxide (CO) can reduce the oxygen-carrying capacity of the blood, leading to shortness of breath, dizziness and even death. This is especially dangerous for people with heart disease who already have a reduced capacity for carrying oxygenated blood to the heart. The majority of CO emissions in urban environments come from mobile sources e.g. cars, trucks, ships and off-road vehicles. Fossil fuel power stations are another major contributor, as well as fires and biogenic sources in rural areas.


In the upper atmosphere ‘good’ ozone (O3) protects life on Earth from the sun's ultraviolet rays. At ground level ‘bad’ ozone is a criteria pollutant that is a significant health risk, especially for people with asthma. It also damages crops, trees and other vegetation and is the main component of smog. Ground level ozone is not emitted directly; it is created by chemical reactions between oxides of nitrogen (NOx) and volatile organic compounds (VOC) in the presence of sunlight. Emissions from industrial facilities and electric utilities, vehicle exhaust, gasoline vapors, and chemical solvents are some of the major sources of NOx and VOC.

Particulate Matter

Airborne particulate matter (PM) is categorized into different size fractions. Total Suspended Particulate (TSP) includes all particle sizes and is a good measure of nuisance dust. PM10 (particles ≤ 10 microns) is a criteria pollutant and is a serious health risk because PM10 particles can penetrate the lungs. PM2.5 (particles ≤ 2.5 microns) is also a criteria pollutant which has even greater health impact due to risk of penetration deeper into the respiratory system. Research has linked particulate pollution to lung and heart disease, strokes, cancer, and reproductive harm. Large particles come from natural sources e.g. soil and organic matter stirred up by wind or human activity. Small particles are by-products of combustion e.g. emissions from vehicles and power stations. Particles from these sources react with other gases in the atmosphere to create particles of various chemical compositions. Gas to particle conversion can also produce fine particulate.