SciELO - Scientific Electronic Library Online

 
vol.13 suppl.2Reflections about health and educational objects and physical environmentsThe human accidents and their implications for functional communication: opinions of teachers and students about higher education author indexsubject indexarticles search
Home Page  

Ciência & Saúde Coletiva

Print version ISSN 1413-8123

Abstract

GARCIA, Eduardo Garcia; BUSSACOS, Marco Antonio  and  FISCHER, Frida Marina. Harmonization and toxicological classification of pesticides in 1992 in Brazil and the need to foresee the impacts from the forthcoming introduction of GHS. Ciênc. saúde coletiva [online]. 2008, vol.13, suppl.2, pp. 2279-2287. ISSN 1413-8123.  http://dx.doi.org/10.1590/S1413-81232008000900032.

In 1992, Brazil modified its toxicological classification criteria for pesticides. This modification aimed to follow the guidelines of the World Health Organization (WHO) hazard classification of pesticides. In 2002, the United Nations adopted the "Globally Harmonized System for the Classification and Labelling of Chemicals" (GHS). As a result, the WHO is reviewing its classification and Brazil will probably follow the example. Therefore it seems timely to estimate the impact of the changes in the criteria adopted in 1992 in the toxicological reclassification and labelling of the commercially available products registered at that time. It is estimated that 58.6% of the total of registered pesticides (74.9% liquid and 31.0% solid formulations) might have been reclassified to less hazardous classes. The hazard warnings on the labels may have caused negative consequences due to misinterpretations by farmers or rural workers. For countries already having a hazard classification system, it is therefore recommendable to estimate the possible impact of the changes before implanting the GHS.

Keywords : GHS; Pesticides; Risk communication; Toxicological classification; Hazard classification; Chemicals.

        · abstract in Portuguese     · text in Portuguese     · pdf in Portuguese