What is the ranking of the top ten companies that detect formaldehyde in Changsha? Continue to supplement this knowledge.

High concentration of formaldehyde is toxic to nervous system, immune system and liver. Formaldehyde also has teratogenic and carcinogenic effects. People who have been exposed to formaldehyde for a long time may cause cancer of nasal cavity, mouth, nasopharynx, throat, skin and digestive tract. Generally, many newly renovated 1 or 2-year-old houses have the phenomenon that harmful gases such as formaldehyde and benzene exceed the standard, so it is particularly important to detect the air quality after the renovation of new houses and during the living of houses. Changsha Xingshi Air Quality Testing Company (Xingshi Testing Institute), headquartered in Changsha, Hunan Province, was established in 2007. As an independent third-party testing organization, it has conducted more than 6,000 cases of indoor air testing for owners in various regions of Hunan. Changsha Xingshi indoor air quality detection (services include formaldehyde detection, TVOC detection, benzene detection, xylene detection, radon (radioactive detection), home environment detection, indoor harmful gas detection, formaldehyde detection, new house air detection, furniture formaldehyde detection, air detection after decoration, home improvement detection, home improvement environmental monitoring, home improvement detection, home improvement air detection, indoor air monitoring, home indoor air testing, house formaldehyde detection, New house decoration formaldehyde detection, environmental pollution detection, new house air detection, indoor gas detection, home improvement pollution detection, decoration formaldehyde detection, room formaldehyde detection, new house air detection, indoor decoration air detection, air formaldehyde detection, professional formaldehyde detection, formaldehyde detection, house air detection, new house indoor air testing, indoor air testing, formaldehyde air detection, home improvement air quality detection, house decoration detection, ambient air detection, formaldehyde exceeding standard detection, Formaldehyde detection after decoration, indoor formaldehyde air detection, decoration pollution detection, formaldehyde content detection, formaldehyde professional detection, furniture formaldehyde detection, household formaldehyde detection, formaldehyde detection, decoration environmental protection detection, hotel air detection, kindergarten air detection, decoration air quality detection, decoration air quality detection, house formaldehyde detection, air quality detection, indoor environment detection center, indoor air testing center, indoor environment monitoring, indoor formaldehyde detection, Indoor air testing, indoor air quality inspection, air inspection, indoor air quality inspection, air inspection, indoor air quality inspection, domestic air quality inspection, indoor decoration pollution inspection, Changsha indoor air testing, formaldehyde inspection, decoration pollution inspection, environmental protection inspection, furniture inspection, air quality inspection, environmental inspection, harmful gas inspection, indoor testing, etc. ).