Formaldehyde
0.012266 ppm.
Conclusion:
Airborne concentrations are low comparing to limits > risk is low
Indoor concentrations could be ten times the limit depending on the factors described above >
risk is high
Occupational exposure: as measurements showed exposure range is below limits, however
there is always the risk to be exposed to formaldehyde vapor or gas because of its volatility >
risk is moderate
Risk for the environment
As descried in environmental fate section formaldehyde is removed from the atmosphere quite fast.
The fate of formaldehyde in soil has not been determined.
The main target in the environment for formaldehyde is water. Taking into account that PNECaqua
has low limit the risk is moderate for aquatic ecosystem.
List of literature:
http://www.atsdr.cdc.gov/ToxProfiles/tp111.pdf
http://www.inchem.org/documents/sids/sids/FORMALDEHYDE.pdf
http://www.cancer.gov/cancertopics/factsheet/Risk/formaldehyde
annaabi.ee 
