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.

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。

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 ...

Startup PurpleAir makes a living counting dust. Its consumer-level sensors measure particles of dust in air—airborne particulate matter (PM)—using laser particle counters that can count particle sizes ...

空气污染，特别是细颗粒物（例如PM2.5）是一个全球主要的公共卫生问题。PM2.5，指环境空气中空气动力学当量直径为 2.5 微米以下的颗粒物。它能较长时间悬浮于空气中，还可随呼吸深入肺部深处，其在空气中含量浓度越高，就代表空气污染越严重。 与较粗的 ...

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 ...

NEW DELHI: (Dec 8) An indigenous PM2.5 sensor designed for affordability and scalability is being developed to address the Global South's air quality challenges, Professor S N Tripathi, Dean of the ...

Shelter-in-place orders during the early stages of the coronavirus pandemic briefly created the best air quality in decades, but forest fires on the West Coast of the United States have taken things ...

长期以来，人们普遍认为PM2.5主要影响呼吸系统健康，例如2023年4月《Nature》期刊发表的一项研究表明，PM2.5可能作为肺癌的促肿瘤因素。然而，最新的研究显示，长期暴露于PM2.5环境中，不仅对肺部有害，还会加速大脑衰老，并与阿尔茨海默病等痴呆症直接相关。

近期，生态环境部发布了《环境空气质量标准（征求意见稿）》，修订稿加严了PM2.5和PM10、SO2、NO2等污染物浓度限值。老版标准成效如何？新版标准严在哪？为何要升级？对生活又会产生哪些影响？ 现行的《环境空气质量标准》（代号 GB 3095—2012）自 2012 年发布 ...