Urban transportation is a key contributor to air pollution in cities. While urban buses impact air quality, they also promote sustainable mobility. In the Paris region, buses account for approximately 4% of traffic emissions. This study addresses the gap in real-world emissions data for Euro VI diesel, diesel-hybrid, and compressed natural gas (CNG) urban buses by developing speed-dependent emissi...

Vehicle emissions are often a major source of air pollution in cities. Clean Air Zones (CAZs), and similar schemes such as Low Emissions Zones and Zero Emission Zones, are one of the tools available to cities seeking to address this challenge. This guidance is for policy makers who are interested in CAZs, including elected leaders, mayors and officials in local governments and city administrations...

This online training course developed by the Pan-American Health Organisation (PAHO) covers key aspects of air quality management in four modules:Guidance on quality assurance and quality controlTechnical and analytical capacityEmissions inventoriesAir quality regulations...

Citizen observatories (COs) are socio-technical initiatives that seek to engage citizens interested in environmental issues via digital applications to gather ecological data, drawing on participatory approaches. While CO projects conducted in the Global North have successfully engaged citizens, less is known about how they engage with citizens in rural areas in the Global South. Herein, authors a...

Air pollution is a critical environmental challenge in Southeast Asia, affecting millions of lives. This report outlines a strategic approach to improving air quality while also combatting climate change in the ASEAN region. The Clean Air Solutions for ASEAN report identifies 15 priority measures that could more than triple the number of people breathing clean air by 2030 and reduce PM2.5 levels b...

UNDP’s Toolkit for Developing Multi-Sectoral, Multi-Stakeholder City Air Quality Action Plan (MSAP) provides a comprehensive framework for Indian cities to address air quality challenges systematically. Drawing on best practices from global air quality management, including the European Union’s Air Quality Plans, the toolkit equips policymakers with practical tools, technologies, management strate...

Air pollution is taking a heavy toll on both people and economies across the world. Reducing it will require effective, targeted, and integrated policies. This report identifies the main sources of air pollution in the world today, with a focus on ambient fine particulate matter (PM2.5). It deploys scenario modeling to assess the extent to which current air pollution policies will reduce exposure ...

Reducing black carbon alongside other super pollutants is the fastest, most effective way to achieve near-immediate climate gains while improving air quality, public health, and the economy. The case for action is clear – proven solutions exist to cut emissions rapidly and at scale, but greater attention and urgency are essential.Focusing on the sources of black carbon, characterised by dirty fuel...

Everything you need to know about transitioning your Class 3-8 vehicles. Electrifying your fleet is a long-term strategy for your company. The journey is worth it — but until now, there hasn’t been a comprehensive map to guide your team through the process.Every day, medium and heavy-duty fleets carry goods, packages and people that keep the economy running. But, important as these vehicles are, t...

Air pollution measurements collected through systematic mobile monitoring campaigns can provide outdoor concentration data at high spatial resolution. Authors explore approaches to minimize data requirements for mapping a city’s air quality using mobile monitors with “data-only” versus predictive modeling approaches. Authors equipped two Google Street View cars with 1-Hz instruments to collect nit...