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19% of cancer cases are caused by environmental factors
.
This includes the work environment
107 substances, mixtures and exposure environment are human carcinogens
.
The International Agency for Research on Cancer has designated 107 substances, mixtures and exposure environments as human carcinogens
In 2004, 3%-14% of lung cancer deaths were caused by exposure to radon
.
In many countries, it is the second leading cause of lung cancer
In 2004, 165,000 people worldwide died of cancer caused by air pollution
.
The cancer deaths caused by air pollution can be further classified:l 108,000 people died from outdoor air pollution;236,000 people died from using solid fuels for cooking and heating;3 about 21,000 people died from second-hand smoke
In 2004, occupational environmental carcinogens caused 111,000 deaths from lung cancer
.
In 2004, some carcinogens in the occupational environment (beryllium and silica, etc.
) were estimated to cause 111,000 deaths from lung cancer, compared with only 59,000 mesothelioma deaths caused by asbestos
In 2000, ultraviolet radiation caused 65,000 melanoma-related deaths and 12,000 basal and squamous skin cancers
.
In 2004, some chemicals (such as benzene) and ionizing radiation caused 7,400 deaths from leukemia
.
3,700 Bangladeshis died of cancer caused by arsenic
.
In Bangladesh alone, the death toll from lung cancer, bladder cancer, kidney cancer and skin cancer caused by arsenic in drinking water is estimated to be as high as 3,700
Taking preventive measures is the key to reducing cancer
.
Between 1982 and 1992, China implemented a coal stove renovation project, and rural households installed 129 million new stoves
.
Subsequent evaluation results showed that the number of lung cancer patients was reduced by about 40% after replacing the old open coal stove with a clean coal stove with a chimney
.
This example shows that taking primary preventive measures to eliminate or reduce exposure to environmental carcinogens, including workplaces, is the key to reducing the incidence of cancer
.
Exercise can reduce the risk of some cancers.
Implementing favorable environment and transportation policies, encouraging cycling and walking, can reduce some deaths from breast cancer, colon cancer and rectal cancer
.
