In 1993 local unions joined Coletivo Alternativa Verde (Green Alternative Collective) and Greenpeace, and filed a complaint in the courts, citing contamination of Vila Carioca with hydrocarbons, heavy metals, and organochlorides
, which include dioxins and biphenyls, are persistent organic pollutants linked to toxic effects on humans.
While exposure to certain organochlorides
proved to increase total spermatic number and total sperm motility levels, other pesticides have the adverse effects and are associated to a reduction in these levels.
The neutrophil function and infectious diseases in workers occupationally exposed to organochloride
insecticides had mostly been replaced by organophosphates by 1990, so these represent the smallest and largest groups, respectively.
As pyrethrins are biodegradable and have minimal impact on human health and environment, they are preferred over conventional insecticides such as organochlorides
Ru, Fe, Os, Mo, Ir, Ni) are able to form different types of metal-carbon bonded complexes with organochlorides
(Guilard & Kadish 1988).
Chemicals such as petroleum distillates (also known as hydrocarbon solvents), organochlorides
and volatile organic carbons (VOCs) are just a few of the common building blocks in solvents, paints and oils.
This is best exemplified by the spraying of organochlorides
on mud and daub structures in rural areas in Africa and the spraying of a carbamate on western type structures (brick walls and tiled roofs).
In the last years ozone has successfully been applied to the treatment of specific compounds such as dyes, phenolic compounds, pesticides and organochlorides
(Wu and Masten 2002; Kamenev 2003).
The history of pollution by organochlorides
on falcons and other raptors, and the revival of their populations after these pesticides were banned in Europe and North America give hope for conservation concerns.
, the chemicals that replace DDT, have more immediate and significant risks of toxicity, which are exaggerated by users' unfamiliarity with them.