Barrons AP Environmental Science

Around 50% of people, almost all in developing countries, rely on coal and
biomass in the form of wood, dung, and crop residues for domestic energy.
These materials are typically burned in simple stoves with very incomplete
combustion. Consequently, women and young children are exposed to high
levels of indoor air pollution every day. There is consistent evidence that this
daily exposure increases the risk of chronic obstructive pulmonary disease and
acute respiratory infections in childhood, the most significant cause of death
among children under 5 years of age in developing countries. Evidence also
exists of carbon monoxide contributing to low birth weight, increased infant
mortality, tuberculosis, and lung cancer.

FORMALDEHYDE

Formaldehyde is an organic chemical (a molecule that contains carbon) that is
prevalent in the indoor environment. It is a carcinogen that is linked to nasal and
lung cancer. The following table shows consumer products that contain
formaldehyde:

Products    That    Contain Formaldehyde

Products Examples

Paper   products Grocery    bags,   facial  tissues,    paper

towels, disposable  sanitary

products

Stiffeners, wrinkle resisters,  and

water   repellents

Floor   covering    (rugs,  linoleum,

varnishes,  plastics),  carpet

adhesive,   fire    retardants,

permanent   press   clothes

Insulation Foam insulation

Combustion Natural  gas,    kerosene,   tobacco

smoke

Pressed-wood    products Plywood,   particle    board,

decorative  paneling

Other Cosmetics,    deodorants, shampoos,

fabric  dyes,   disinfectants