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.
Formaldehyde is one of the few chemicals that can easily penetrate the skin, but even so compared to the formaldehyde you are generating yourself and the formaldehyde that you are eating as part of your normal diet the liver is hardly going to even register the extra contribution getting in via your skin.he quantities are low but even so I am not at all keen on the idea of biologically active breakdown products spontaneously forming on the skin. DMDM Hydantoin hasnât been shown to have this problem, but the molecule itself turns out to sensitise a reasonable number of people.