In addition to an overall Air Quality Index (AQI) reading, the HP09 measures levels of PM2.5 (particulate matter smaller than 2.5 microns such as smoke), PM10 (particulate matter smaller than 10 microns such as pollen, dander, and dust), formaldehyde (HCHO, a colorless chemical emitted by cleaners, plywood, varnishes, and many other common household items and materials), volatile organic compounds (VOCs, such as gases from aerosol sprays and air fresheners), and nitrogen dioxide (NO2, or pollutants from smoke, gas stoves, and candles)
Episodes of self-harm and suicidal thoughts should always be taken seriously
Preferential formation of benzo[a]pyrene adduct at lung cancer mutation hotspots in p53
Turning plant fiber into a smooth, rollable sheet involves pulping, straining, pressing, and drying in even layers