The toxicity of heavy metals (Hg2 + , Zn2 + ) and pesticides has been investigated by comparing the physiological properties in wild and tolerant strains of Synechococcus cedrorum 1191. The differential pattern of gro...The toxicity of heavy metals (Hg2 + , Zn2 + ) and pesticides has been investigated by comparing the physiological properties in wild and tolerant strains of Synechococcus cedrorum 1191. The differential pattern of growth, absorption spectra of pigments and nutrient uptake was observed in tolerant strain.展开更多
In this study,an effective antibiotic-degrading strain NG3 was isolated from activated sludge of antibiotic wastewater treatment.According to the results of morphological,physiological and biochemical identification a...In this study,an effective antibiotic-degrading strain NG3 was isolated from activated sludge of antibiotic wastewater treatment.According to the results of morphological,physiological and biochemical identification and phylogenetical analysis of 16S r DNA sequence,the isolated strain belonged to Acinetobacter sp.,which was named Acinetobacter sp.NG3.Moreover,biological properties of the isolated strain were analyzed preliminarily,which provided a basis for the application of Acinetobacter sp.NG3 strain in efficient treatment of antibiotic industrial wastewater.展开更多
Rising temperature and heat stress risks in the changing climate scenario might potentially affect workers globally,especially the ones with strenuous workload in tropical settings.We used a cross-sectional study desi...Rising temperature and heat stress risks in the changing climate scenario might potentially affect workers globally,especially the ones with strenuous workload in tropical settings.We used a cross-sectional study design to profile the heat exposures of-1900 workers from eight industrial sectors using a Ques Temp Wet Bulb Globe Temperature(WBGT)monitor,quantified select heat-strain indicators viz.,rise in Core Body Temperature,Sweat Rate,and Urine Specific Gravity and evaluated the perceived health impacts of heat stress using a structured questionnaire.Heat exposures(average WBGT:30.1±2.6℃)exceeded the Threshold Limit Value for 67%workers and was positively associated with the rise in Core Body Temperature>1℃ in 13%and elevated Urine Specific Gravity>1.020 in 9%workers.Heat-related health concerns were reported by 86%workers,and the heat-exposed workers had 2.3 times higher odds of adverse health outcomes compared to unexposed workers(p<0.0001).Exposure to higher WBGT and adverse renal health among salt-pan workers were significantly associated(p=0.004),and steel workers had 9% prevalence of kidney stones.Evidence presented clearly points to heat stress as a health and productivity risk factor that could have long-term and irreversible health impacts.In-depth assessments are urgently needed to develop scientifically sound preventative interventions and protective labor policies to avert the adverse occupational health and productivity consequences for millions of workers globally,thereby aiding poverty reduction.展开更多
文摘The toxicity of heavy metals (Hg2 + , Zn2 + ) and pesticides has been investigated by comparing the physiological properties in wild and tolerant strains of Synechococcus cedrorum 1191. The differential pattern of growth, absorption spectra of pigments and nutrient uptake was observed in tolerant strain.
基金Supported by of Science and Technology Research(Guiding)Project of Heilongjiang Provincial Science and Technology Department‘Study on Treatment of Antibiotic Pharmaceutical Wastewater with Efficient Complex Microorganism Immobilization Techniques’(12535090)
文摘In this study,an effective antibiotic-degrading strain NG3 was isolated from activated sludge of antibiotic wastewater treatment.According to the results of morphological,physiological and biochemical identification and phylogenetical analysis of 16S r DNA sequence,the isolated strain belonged to Acinetobacter sp.,which was named Acinetobacter sp.NG3.Moreover,biological properties of the isolated strain were analyzed preliminarily,which provided a basis for the application of Acinetobacter sp.NG3 strain in efficient treatment of antibiotic industrial wastewater.
文摘Rising temperature and heat stress risks in the changing climate scenario might potentially affect workers globally,especially the ones with strenuous workload in tropical settings.We used a cross-sectional study design to profile the heat exposures of-1900 workers from eight industrial sectors using a Ques Temp Wet Bulb Globe Temperature(WBGT)monitor,quantified select heat-strain indicators viz.,rise in Core Body Temperature,Sweat Rate,and Urine Specific Gravity and evaluated the perceived health impacts of heat stress using a structured questionnaire.Heat exposures(average WBGT:30.1±2.6℃)exceeded the Threshold Limit Value for 67%workers and was positively associated with the rise in Core Body Temperature>1℃ in 13%and elevated Urine Specific Gravity>1.020 in 9%workers.Heat-related health concerns were reported by 86%workers,and the heat-exposed workers had 2.3 times higher odds of adverse health outcomes compared to unexposed workers(p<0.0001).Exposure to higher WBGT and adverse renal health among salt-pan workers were significantly associated(p=0.004),and steel workers had 9% prevalence of kidney stones.Evidence presented clearly points to heat stress as a health and productivity risk factor that could have long-term and irreversible health impacts.In-depth assessments are urgently needed to develop scientifically sound preventative interventions and protective labor policies to avert the adverse occupational health and productivity consequences for millions of workers globally,thereby aiding poverty reduction.
