BMV080 is a low-power, low-cost PM1, PM2.5, and PM10 sensor module with I2C and SPI interfaces that sells for just $29.90.

In this DI, high school student Tommy Liu builds a vehicle-mounted particulate matter monitoring system that siphons power from harvested wind energy from vehicle motion and an integrated ...

对比2022和2021年情况，广州2023年PM2.5主要污染源总体呈下降趋势。 近年来，广州市不断加强大气污染防治工作，PM2.5浓度也随之明显下降。 2023年广州市PM2.5年均浓度为23微克/立方米，相比2013年下降了56.6%，连续7年稳定达到国家标准，并在国家中心城市中保持最优。

Thinking about a personal air pollution sensor? Based on cost and on laboratory and field evaluations by air pollution experts, we recommend the PA-II by PurpleAir (purpleair.com) as the best outdoor ...