Biological Toxicity Effects of Soil Pollution Caused by Galvanized Wastewater Based on Vibrio Qinghaiensis sp.-Q67 / 法医学杂志

Objective To establish a rapid diagnosis method for the biological toxicity of soil, accurately and rapidly evaluate the toxicity of contaminated sites and identify the dominant pollutants. Methods Take the soil pollution of a galvanized factory as an example, while the metal concentration level was analyzed and detected, a rapid biological toxicity detection method based on the acute toxicity test of luminescent bacteria （Vibrio qinghaiensis sp.-Q67） was established, and the dominant pollutants were identified by stepwise multiple regression. Results The pollutants came from wastewater and metal plating fragments directly discharged from the manufacturing line of the factory. The concentration of those pollutants was correlated with the acute toxicity of Vibrio qinghaiensis sp.-Q67. The dominant pollutants in the study were zinc （Zn）, aluminum （Al） and copper （Cu）. Conclusion The luminescent bacteria toxicity test method based on Vibrio qinghaiensis sp.-Q67 can conveniently and rapidly assess the degree of toxic damage of polluted soil and identify the dominant pollutants and can be applied to the acute toxicity evaluation of polluted soil.

Odontologia do trabalho: o processo galvânico e sua interação com a saúde bucal do trabalhador / Labor dentistry: the galvanic process and its interaction with the worker's oral health

O objetivo deste trabalho foi investigar os problemas bucais que mais afetam os trabalhadores expostos a agentes químicos em indústrias galvânicas. Foram selecionadas duas indústrias (A e B) na região de Curitiba (PR). Em cada uma foi escolhido um grupo de trabalhadores ligado diretamente ao processo galvânico e outro não. Realizaram-se inspeção da indústria e aplicação de um questionário aos trabalhadores, além do exame clínico extra e intrabucal. Os dados coletados foram analisados, e não houve resultados significativos dentro de cada indústria. Quando comparadas, a indústria B apresentou maior índice de sintomas

The aim of this work was to investigate the buccal problems that most affect the workers exposed to the chemical agents in galvanic industries.Two industries (A and B) have been selected in the region of Curitiba.In each industry one group of workers that was straightly connected tothe galvanic process and another one that was not, were selected. An inspection of the industry and the application of a questionnaire to the workers were carried out besides the realization of the clinical extraand intrabuccal examination. The collected data were analyzed and they have not given significant results in each industry. When compared,the industry B presented higher rates of symptoms