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Study finds reduction of low-frequency noise from transition to electric buses improved residents’ health

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Accompanying the lower noise levels from bus traffic was a reduction of fatigue, day time sleepiness and low mood, a study at the University of Gothenburg shows. Previous noise-level measurements had indicated that disturbance from low-frequency noise in indoor environments was present in the residential area.

Electric 459
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USC study shows promising potential for giant-kelp-based biofuel with depth-cycling approach

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Scientists at the USC Wrigley Institute for Environmental Studies on Santa Catalina Island, working with private industry, report that a new aquaculture technique on the California coast significantly increases kelp growth, yielding four times more biomass than natural processes. The researchers used a depth-cycling approach—i.e.,

Mariner 468
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Global study shows uneven urbanization among large cities in the last two decades

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Due to the rapid economic growth in the study period, China invested a large amount of resources into infrastructure construction for advancing the urban living environment. Of the 841 cities studied, 325 showed significant greening with more than 10% of greening BUAs. billion and the urban population was 4.2

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Monash study on solar-driven electrolysis for green hydrogen production cautions on life-cycle emissions and EROI

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The open-access paper on the study is published in the RSC journal Energy & Environmental Science. Taking IRENA’s REmap scenario as a reference, renewable hydrogen could deliver 5% of total final energy demand in 2050. Process flow diagram and construction phase boundary. Palmer et al. According to the IEA, less than 0.1%

Solar 459
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Study finds association between air pollution, coronary atherosclerosis in Chinese population

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The study was conducted on 8,867 Chinese adults aged 25 to 92. The findings, published in an open-access paper in JAMA Network Open , are significant because, while similar studies have been conducted in the US and Europe, this one is the first to investigate the connection between air pollution and coronary artery calcium in China.

Pollution 320
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New study finds gasoline stations vent up to 10x more benzene fumes than previously thought

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A study led by environmental health scientists at Columbia University Mailman School of Public Health examined the release of vapors from gasoline station vent pipes, and found benzene emissions were 10 times higher than estimates used in setback regulations that determine how close schools, playgrounds, and parks can be to the facilities.

Gasoline 365
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Study links deterioration of concrete and asphalt to trace quantities of organic matter; diesel exhaust, windshield washer fluids

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GBS, GHY, TMS, MS TSS and GR refer to different types of aggregates in the mortar. They tested a variety of asphalt samples from Japan dating back to 1960; a number of concrete samples from across the world were also tested, and a 120-year-old concrete sample was used as a reference. CT scans showing cracks in damaged concrete.

Exhaust 391