Precipitation in the tundra totals 150 to 250 mm a year, including melted snow. That's less than most of the world's greatest deserts! Still, the tundra is usually a wet place because the low temperatures cause evaporation of water to be slow. Much of the arctic has rain and fog in the summers.
Formaldehyde can be toxic, allergenic, and carcinogenic. Because formaldehyde resins are used in many construction materials it is one of the more common indoor air pollutants. At concentrations above 0.1 ppm in air formaldehyde can irritate the eyes and mucous membranes, resulting in watery eyes.ormaldehyde is a naturally-occurring organic compound with the formula CH 2 O. It is the simplest aldehyde and is also known by its systematic name methanal.
1 Eye irritation when formaldehyde is inhaled. 2  Nose irritation when formaldehyde is inhaled. 3  Throat irritation when formaldehyde is inhaled. 4  Headache when formaldehyde is inhaled. 5  Skin injury when formaldehyde is inhaled.  more symptoms...Â».