basic knowledge
- Formaldehyde is the most common and most intractable of indoor air pollution
- Methanol release furniture is very long (over several decades), the method once and for all solve the formaldehyde pollution does not currently exist
- Indoor formaldehyde concentration and the temperature and duration of the air enclosed positive correlation
- Three-formaldehyde glue formaldehyde mainly from artificial boards, in particular for the adhesive sheet
- Other sources include: wallpaper, wall covering, paint, paint, etc.
Hazards of formaldehyde
- Formaldehyde was not significantly associated with leukemia
- Identified hazard:
- Affect the respiratory system - cause or aggravate bronchitis, asthma, etc.
- Allergic diseases - asthma or allergic rhinitis
- In industrial environments , the potential carcinogenicity, carcinogenicity in non-industrial environment is uncertain
Formaldehyde detection
- Online hundreds to thousands of portable formaldehyde detector basically futile
- Even a ten thousand detector 4160, a detection result at a low concentration is not very accurate
- Ten pieces of formaldehyde above those instruments much more reliable than the detection results than colorimetric detection agent
- Note 12 hours closed
- Note that the temperature (room temperature preferably more than 25 degrees)
- Please have the most accurate CMA is a qualified testing organization, take samples for laboratory analysis after the door
- Before sampling, the room must be closed more than 12 hours at high temperature (25 ° C +)
Formaldehyde treatment
- Air purification plants is very limited
- Ventilation concentration of formaldehyde is the most effective way to reduce (even if only a small window opening can not generate convection, can produce significant effect)
- Followed by the adsorption of activated carbon, carbon + large capacity blower, this is more effective
- Be careful not to buy fake activated carbon (activated charcoal is charcoal false = =)
- Activated carbon can not be reused, 2-3 months to be replaced
Reference material