Yokohama City Institute of Pollution Research Report No.15

Oh Reports

• For simultaneous measurement of diffusion type long-term exposure sampler-NO, NO2, SO2, etc.‐
• Measurement of Freon and Organic Chlorine Compounds by diffusion-type long-term exposure sampler (First report)
• Research on analysis of trace components in rainwater (Part 3) - Quantitative analysis of carboxylic acids in rainwater -
• 1 Classification of acid rain in urban areas due to differences in chemical compositions during precipitation
• Research on Road Traffic Vibration - Vibration Level when driving alone -
• Particle size composition and pollution index
• Elution of phosphorus and nitrogen from the bottom of Yokohama Port -Influence of dissolved oxygen concentration and temperature -
• Impact of weather factors on the elongation of red tide
• Method of estimating the presence or absence of oxygen deficiency by gill morphology observation
• About freshwater fish, benthic animals, and algae from the Sakaigawa and Hikichi rivers
• Examination of water purification methods by combining aquatic plants and contact aeration method (3rd report)
• Examination of river water purification method (No. 1)
• Basic Research on Recycling of Wastewater Treatment Sludge (No. 5) - Effective use of sewage sludge incineration ash solidified material -
• Monitoring of pesticides in rivers in Yokohama City
• Groundwater contamination by volatile organic chlorine compounds (First Report) - Relationship between pollutant causative substances and decomposed products -
• Groundwater contamination by volatile organic chlorine compounds (2nd report) - Decomposition reaction model of tetrachloroethylene -
• Study on the subsidence of soft ground (5) - - Measurement of layer-specific subsidence in land subsidence zone and analysis for it -
• Research and study on groundwater in Yokohama (1) - Analysis of groundwater surface based on groundwater level survey results -
• Research and study on groundwater in Yokohama (2) - One consideration of groundwater pollution in land subsidence areas -
• Estimation of contributions to various sources of suspended particulate matter in Yokohama City
• Quantification of cations in environmental samples by ion chromatography
• About 2% NBKI solution of automated oxidant automatic measuring instrument
• Use manual of diffusion long-term exposure sampler for NO and NO2 simultaneous measurement
• Survey of organic chlorinated compounds in wastewater in Yokohama City
• o-acute toxicity assessment of dichlorobenzene's red fin and squirrel
• Classification using nucleic acid composition analysis (guanincitocin content) of aquatic bacteria in Yokohama City