The Air Quality Annual Statistics Viewer shows yearly data for all 12 air pollutants that have legal limits under EU air quality laws. Results are presented by year on maps and box plots. Specific screens also show the evolution throughout the years, as well as the distribution of the values...

Status of reporting under the Air ConventionParties to the Air Convention are invited to report annual emission data by 15th of February and informative inventory reports (IIRs) by 15th of March. The overview tables (see 20YY submission)  for individual years present most recent data as submitted to the Air Convention in that year.Initial and extended checks (S1 and S2)The inventories (NFR ta...

Low-cost sensors collect large amounts of data. Some sensors distributed through the US EPA STAR Grant program have beenrunning continuously for over a year, recording data every minute (that’s over 500,000 rows of data!). For this reason dataanalysis tools and software can be very helpful. In this guide we provide some brief instructions to help community scientistsinteract with the data they are...

Air pollution has reduced steadily across Europe over recent decades, yet it remains the region’s largest environmental health risk, causing diseases, lowering quality of life and leading to preventable deaths. The EU has set air quality standards to reduce risks posed by air pollution. This report presents analysis of the latest official 2023 and 2024 reported concentrations in Europe against cur...

This annual report on air quality in the Paris region covers trends, spatial distribution, and compliance with air quality standards for criteria pollutants. It also analyses population exposure, health implications, and projections under revised European directives....

The intent of this document is to provide guidance to assist auditors in implementing the Technical Systems Audit (TSA) requirements and to provide guidance and tools to aid in conducting TSAs of ambient air monitoring programs. While this document is geared primarily for federal auditors conducting TSAs of air monitoring programs required by CFR, the principles and tools provided in the document ...

This worksheet (Monitor data processing guide for PM10, PM2.5, NO2, SO2, CO) is an annex to the "Ambient air quality data processing and reporting guide" developed by C40. It can be used to analyse your own data to develop averaging metrics:Daily (24-hour) means (for PM10, PM2.5, NO2, SO2, CO).Monthly means (for seasonal variations of pollutants).Annual means (for PM2.5, PM10, NO2)....

This short guide on data quality management looks at how cities can process and validate air quality data to ensure its accuracy and precision. It has been designed to support reporting requirements for C40 member cities but will be more widely applicable.The guide focuses on:Quality control: Data validation (such as checking for outliers) and assessment of data completeness.Calculation of summary...

The "Getting Started" page of the HAQAST website covers the following questions:Why use satellite data for air quality monitoring?What can I use satellite data for?How do I get started?Where can I find more resources?...

The U.S. Environmental Protection Agency (EPA) initiated the national PM2.5 Chemical Speciation Monitoring Network (CSN) in 2000 to support evaluation of long-term trends and to better quantify the impact of sources on particulate matter (PM) concentrations in the size range below 2.5 μm aerodynamic diameter (PM2.5; fine particles). The network peaked at more than 260 sites in 2005. In response to...