contaminated substances

[ˌkɑːntæmɪneɪtɪd ˈsʌbstənsɪz]
nounpl: contaminated substances
substâncias contaminadas
1. Materials or matter that have been made impure or unsafe by the introduction of unwanted elements, pollutants, or harmful agents
The contaminated substances found in the water supply posed a serious health risk to the community.
As substâncias contaminadas encontradas no abastecimento de água representavam um risco grave à saúde da comunidade.
2. Chemical or biological agents that have polluted an environment, food, water, or other material
The laboratory analyzed the contaminated substances to identify the sources of pollution.
O laboratório analisou as substâncias contaminadas para identificar as fontes de poluição.
3. Hazardous materials that require special handling, disposal, or decontamination procedures
Workers must wear protective equipment when handling contaminated substances.
Os trabalhadores devem usar equipamento de proteção ao manusear substâncias contaminadas.
In Brazil, environmental protection and contamination concerns are increasingly important due to industrial development and agricultural activities. The term is commonly used in official environmental regulations (CONAMA - Conselho Nacional do Meio Ambiente) and in discussions about public health and water safety. In the USA, this term is critical in legal contexts, particularly regarding EPA (Environmental Protection Agency) regulations and Superfund sites.
Synonyms / Sinônimos
pollutantsimpuritiestoxic substanceshazardous materialscontaminants
Antonyms / Antônimos
pure substancesclean materialsuncontaminated substancessafe materials

Regional Variations

General Brazilian Portuguese
substâncias contaminadas
Standard term used in official documents and scientific contexts
São Paulo
substâncias contaminadas / materiais contaminados
Commonly used in industrial and environmental regulations
Rio de Janeiro
substâncias contaminadas
Standard usage in health and environmental sectors
Portugal
substâncias contaminadas / matérias contaminadas
Similar usage to Brazilian Portuguese; may use 'matérias' in technical contexts

Related Words

contaminationpollutanthazardtoxicdecontaminationenvironmental pollutionchemical contaminationbiological contamination

Related Idioms & Phrases

contamination hotspot
cross-contamination
secondary contamination
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