Over the last 2 decades, the importance of emissions source types of atmospheric pollutants in urban areas has undergone significant change. In particular, there has been a considerable reduction in emissions associated with road vehicles. Understanding the role played by different source sectors is important if effective air pollution control is to be achieved. Current atmospheric measurements ar...

Authors have developed a field-deployable gas chromatograph (GC) with thermal desorption preconcentration (TDPC), which is demonstrated here with automatic detector switching between two high-resolution time-of-flight mass spectrometers (TOF-MSs) for in situ measurements of volatile organic compounds (VOCs). This system provides many analytical advances, including acquisition of fast time–response...

This document provides guidance on the list of volatile organic compounds (VOCs) state and local monitoring agencies should attempt to measure at their Photochemical Assessment Monitoring Stations (PAMS) monitoring sites.This is an update to the list of original PAMS target compounds listed in the order they eluted on the original PAMS autoGC systems. Elution sequence may be different on current a...

Carbonaceous aerosol particles are associated with large uncertainties in their climate impacts because of incomplete knowledge of their optical properties and emission magnitudes. Biomass-burning sources significantly contribute to carbonaceous aerosol emissions in India, with crop residue burning being crucial during post-harvest months. Here, for the first time, authors study the chemical and o...

Since the end of 2019, Airparif has been monitoring the temporal variations of Ultrafine Particles (UFP) levels in central Paris (Les Halles garden) and is conducting a project to study the spatial variability of their levels across the Paris Region (Ile-de-France) in a variety of environments (urban and rural backgrounds, near road traffic and airport platforms). These solid airborne particles ha...

This service from UK Gov allows users to view and download air pollution data from monitoring networks across the UK. Users can search data by town or postcode, or create a custom dataset....

In 2016, the ‘FAIR Guiding Principles for scientific data management and stewardship’ were published in Scientific Data. The authors intended to provide guidelines to improve the Findability, Accessibility, Interoperability, and Reusability of digital assets. The principles emphasise machine actionability (i.e., the capacity of computational systems to find, access, interoperate, and reuse data wi...

This Standard Reference Material (SRM) is intended primarily for use in the evaluation and calibration of analytical methods for the determination of trace level organic constituents on atmospheric particulate matter or on materials with a similar matrix. This material is atmospheric particulate matter collected in an urban location.Certified values of selected organic constituents, polycyclic aro...

Water-soluble inorganic ions such as ammonium, nitrate and sulfate are major components of fine aerosols in the atmosphere and are widely used in the estimation of aerosol acidity. However, different experimental practices and instrumentation may lead to uncertainties in ion concentrations. Here, an intercomparison experiment was conducted in 10 different laboratories (labs) to investigate the con...

This study provides a comprehensive evaluation of the Xact625i and PX-375 online energy dispersive X-ray fluorescence (ED-XRF) instruments for real-time trace elemental monitoring at a rural background site over six months. This represents the first direct comparison between the two instruments, assessing their performance against inductively coupled plasma mass spectrometry (ICP-MS), the referenc...