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Researchers design a solution for traffic management that helps reduce jams and pollution in cities

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A team of researchers from the Universitat Politècnica de València (UPV) and the Université Paul Sabatier-Toulouse III (France) have developed a system that is capable of managing the entire traffic of a city, which will help to prevent traffic jams, while reducing the driving times of vehicles and pollution levels.

Pollution 281
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Researchers use satellite data to show vehicles are an under-recognized source of urban ammonia pollution

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Researchers now report in ACS’ Environmental Science & Technology Letters that satellite data from before and during the spring 2020 lockdown in Los Angeles shows that vehicles, rather than agriculture, are the main source of urban airborne ammonia (NH 3 ), which forms small particles that contribute to air pollution and harm human health.

Pollution 321
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Argonne helps optimize piston bowl design for Caterpillar heavy-duty engines using high-performance computing

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Engineers are working to improve the fuel efficiency of these engines while minimizing pollution to reduce energy consumption and ensure the sustainability of these industries in the future. Argonne researchers used supercomputers to optimize the design of piston bowls in heavy-duty engines for Caterpillar Inc.

Design 459
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NUS researcher links air pollution to increased residential electricity demand

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The reasons were two-fold: (i) increased air pollution led to households staying indoors more to mitigate the pollution impact; and (ii) PM 2.5 pollution led to the closing of windows, and running of air-conditioners and air purifiers more intensively either to reduce indoor particle levels or provide relief from indoor heat.

Pollution 275
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CARB approves new requirements to further reduce air pollution from Transport Refrigeration Units

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The 2022 amendments will require a variety of actions designed to reduce the pollution these units produce, and accelerate their transition to zero-emission technologies. The California Air Resources Board (CARB) approved amendments to its current rule for Transport Refrigeration Units (TRUs) operating in the state. road engines.

Pollution 259
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CARB approves updated “At-Berth” regulation, expanding efforts to cut pollution from ships in California ports

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The California Air Resources Board approved a new regulation designed to reduce pollution further from ocean-going vessels while docked at California’s busiest ports. The rule builds on progress achieved by the At-Berth Regulation adopted in 2007.

Pollution 305
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Study finds that replacing older, highly polluting school buses could lead to 1.3 million fewer daily absences annually

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Replacing all of the oldest, highly polluting school buses in the US could lead to 1.3 Even relatively short commutes on school buses can dominate students’ daily air pollution exposures. That means millions of children are still riding older, highly polluting buses to school. —Sarah Adar, co-author Resources Pedde, M.,

Pollution 170