Regulations & Standards

OpenAQ’s 2025 Year in Data report shows rapid expansion of global air quality monitoring, improving access to data, and supporting efforts to address pollution worldwide.

Learn how air pollution regulations save lives, strengthen the economy, and shape a healthier future.

The Clean Air Act is a landmark U.S. law that has enabled the Environmental Protection Agency to dramatically improve air quality, reduce pollution, and protect public health and the environment since the 1970s

By working in partnership with other key stakeholders, regulators can leverage the use of both low-cost sensors and reference-grade monitoring equipment to turn air quality data into tangible action.

As we continue to break down the US EPA's Enhanced Air Sensor Guidebook, we discuss the importance of collocation to ensure effective, accurate air quality measurement with low-cost sensors.

We break down the US EPA's Enhanced Air Sensor Guidebook's recommendations on siting sensor and installation, with key considerations to make to establish an effective air quality monitoring network.

In the second installment of our series on the USEPA Enhanced Air Sensor Guidebook, we're highlighting the recommended use cases for NSIM air quality monitoring.

We're breaking down the USEPA's Enhanced Air Sensor Guidebook, beginning with the important considerations and guiding questions that drive the design of a successful network.

As the 2022 midterm elections quickly approach, we're taking a look at the different environmentally-oriented state propositions and key electoral races.

In celebration of California Clean Air Day, we are reflecting back on California's history of air quality management over the years.