In many parts of the world, understanding what causes serious pollution and when it happens is unclear due to a lack of air quality monitoring. The solution, say experts, doesn’t need to be expensive and can lead to better public health policy.Dr. Kamruzzaman inspects an X-ray document of a baby who is suffering from respiratory disease at Dhaka Shishu Hospital in Dhaka, Bangladesh, in late 2019.
Experts say it highlights a need not just for pollution reduction measures — but for more affordable monitoring and measurement tools to figure out what's causing the problem in the first place. Optical: Shining lasers through particles and seeing how light behaves to determine amounts. The benefit here is that it's cheaper and real-time.
"The Environmental Protection Agency has tried to calibrate this instrumentation against the more gold standard measurements," Adetona explained. The EPA has developed methods to integrate the data from the low-cost sensors with that from the more expensive ones.
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