What is the formaldehyde standard in the car?

Harm of excessive formaldehyde content: the national standard formaldehyde content is not higher than 0.08mg/m3, and 0.09 mg/m3-0.3 mg/m3 is light pollution; Symptoms: easy to catch a cold, decreased immunity, dry throat in the morning, sore throat. 0.4 mg/m3 -0.8 mg/m3 heavy pollution; Symptoms: cough, respiratory discomfort, indoor flowers and plants are easy to die. Extreme pollution above 0.9 mg/m3-1.0 mg/m3; Symptoms: asthma, prone to leukemia, lung cancer, liver cancer and so on. Note: When the indoor formaldehyde content reaches 3.0 mg/m3, people will die immediately once inhaled; In addition, drinking water and clothes also contain trace amounts of formaldehyde. Choose to detect formaldehyde, triphenyl, ammonia, radon and TVOC in indoor air. There are three standards for formaldehyde in indoor air quality (0. 10, 0.08, 0. 12 mg/m3). Indoor air quality testing measures whether a house meets the sanitary requirements of the living environment, according to GB/T 18883-2002 indoor air quality standard. Detection of indoor environmental pollutants Environmental acceptance detection of civil construction projects and indoor decoration projects is based on GB50325-200 1 Code for Environmental Pollutant Control of Civil Construction Projects. GB/T 18883 Indoor air quality standard is formaldehyde 0.10 mg/m3; GB50325 "Code for Indoor Environmental Pollution Control of Civil Building Engineering" formaldehyde standard Class I building ≤ 0.08mg/m3 Class II building ≤ 0.12mg/m3; A class of civil construction projects: residential buildings, hospitals, old buildings, kindergartens, school classrooms and other civil construction projects; Class II civil construction projects: office buildings, shops, hotels, cultural and entertainment venues, bookstores, libraries, exhibition halls, gymnasiums, public transport waiting rooms, restaurants, barbershops and other civil construction projects. Anyway, the amount of formaldehyde is not good for the human body, so we must pay attention to ourselves.