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Health Rounds: Electric vehicles reduce air pollution, which is harmful to health.

Researchers studying satellite data for California discovered that the?more electric vehicles in a neighbourhood, the lower air pollution caused by burning fossil fuels.

Satellite data confirmed, on the other hand, that areas that increased their number of gas-powered cars saw an increase in pollution.

In a press release, Sandrah Eckel from the Keck Medical School at USC stated that California's move to electric vehicles has already made measurable changes in the air quality.

Researchers reported in The Lancet Planetary Health that for every 200 zero emission vehicles added to Californian neighborhoods between 2019-2023, nitrogen dioxide concentrations dropped by 1.1%.

Pollutants released by burning fossil fuels can cause asthma attacks, bronchitis and increase your risk of stroke and heart disease.

Researchers analyzed the data by dividing California into 1,692 areas and obtaining publicly available information from the Department of Motor Vehicles of the state on the number of ZEVs that are registered in each area. These included fully-battery-electric cars, plug in electric hybrids, and hydrogen fuel cell cars.

The researchers then collected data from a satellite sensor with high resolution that measures NO2 levels based on how the gas absorbs or reflects sunlight.

Researchers plan to compare the data on ZEV use with emergency room visits related to asthma and hospitalizations in California.

The report stated that while the Trump administration prefers gas-powered cars and has ended?tax incentives aimed at promoting EVs the full transition to electric vehicle is projected to lower ambient NO2 levels by 61% in America and up to 80% by China.

Eckel added that the findings "show cleaner air isn’t just a theoretical concept, but it's happening already in communities throughout California."

EXPERIMENTAL CONTACT LENSES MONITOR PRESSURE IN THE EYE

Early animal testing found that the experimental contact lenses were as accurate as more expensive equipment.

Researchers in Japan have developed a method to integrate a thin layer with multiple layers into lenses. Each layer has its own intrinsic properties, which help measure and monitor intraocular tension in real-time, according to a report in npj Flexible electronics.

Wireless transmission of data is possible with an antenna integrated into the lens.

Researchers have noted that glaucoma can be a major cause of blindness in people who cannot monitor and manage intraocular pressure on a daily basis. The current tools used to measure intraocular pressure are not portable, convenient or easily accessible. They also cannot be continuously monitored.

According to the report, when they tested their lenses on rabbits, the pressures that were transmitted by the devices matched those obtained using traditional monitoring devices.

The authors admit that there are still some obstacles to overcome before the devices can be used in the field. This includes the need for a way to differentiate intraocular pressure variations caused by posture changes or blinking.

Takeo Miyake, study leader at Waseda University, Tokyo, said that the platform was promising for long-term non-invasive intraocular monitoring. (Reporting and editing by Nancy Lapid, Bill Berkrot).

(source: Reuters)