This document is intended to provide additional guidance to assist personnel using reference methods or Class I equivalent methods to monitor ambient air for particles with an aerodynamic diameter nominally equal to or less than 2.5 micrometers (ȝm), known as PM2.5. The formal specifications for PM2.5 reference method samplers and reference method measurements are set forth in the U.S. Environment...

The document outlines Mexico's National Environmental Audit System (SINA) regulations, which aim to assess and manage environmental impacts across various sectors. It emphasizes the importance of compliance with environmental laws and standards to mitigate pollution and promote sustainable development and specifies the minimum conditions tat must be observed for the establishment and operation of ...

Among the 23 countries in Latin America and the Caribbean (LAC), 18 have current air quality regulations accessible to the public via official websites, aligning these regulations with historical standards from the US Environmental Protection Agency (USEPA) and guideline values from the World Health Organization (WHO). The study identifies atmospheric monitoring programs across LAC countries and h...

Exposure to particulate matter (PM2.5) is a major risk factor for morbidity and mortality. Yet few studies have examined patterns of population exposure and investigated the predictors of PM2.5 across the rapidly growing cities in lower- and middle-income countries. The objectives of this article is to characterize PM2.5 levels, describe patterns of population exposure, and investigate urban facto...

This study conducted a comprehensive literature review across various databases to gather information on respirable particles (PM10 and PM2.5), including their sources, levels (μg/m3), and monitoring practices in major Latin American cities. The findings aim to provide a clear understanding of current particulate matter issues in these urban areas, offering valuable insights for policy development...

The article discusses the emergence of low-cost sensors as viable alternatives to traditional air quality monitoring equipment since 2013. These sensors are commercially available with diverse operating principles, but standardization and calibration methods are still in development. The selection of sensors depends on the variables of interest, facilitating adaptation to commercial availability, ...

Air pollution is defined as a phenomenon harmful to the ecological system and the normal conditions of human existence and development when some substances in the atmosphere exceed a certain concentration. In the face of increasingly serious environmental pollution problems, scholars have conducted a significant quantity of related research, and in those studies, the forecasting of air pollution h...

The article examines the evolution of air quality monitoring networks in cities, particularly focusing on Bogota as a case study. It highlights how these networks initially emerged in Latin America during the 1960s, driven by international power dynamics rather than local pollution concerns. Despite their controversial beginnings, these monitoring systems eventually became crucial for public healt...

This paper presents a dataset of air quality observations collected from 68 spatially distributed monitoring stations across Uganda. The dataset includes hourly PM2.5 and PM10 data collected from low-cost air quality monitoring devices and one reference grade monitoring device over a period ranging from 2019 to 2020. This dataset contributes towards filling some of the data gaps witnessed over the...

This article proposes an air quality measurement and analysis system (AQMAS) framework as a systematic and comprehensive approach to guide the efforts of LMICs to put in place the key activities and actors to underpin the development of the knowledge base regarding the state of air pollution and use this knowledge to address air pollution....