Yokohama Institute of Environmental Science No. 17

Oh Report

• Demonstration test of non-equal speed aspiration error theory in dust concentration measurement at thermal power plants
• Behavior of suspended particulate matter in Yokohama on weekdays and holidays
• Measurement of the concentration of polycyclic aromatic hydrocarbons (PAHs) in Yokohama - behaviour from 1986 to 1991 -
• pH and acid capacity of precipitation in various parts of Japan
• Rain and trunk flow in forests in urban areas (1) - Composition of rain inside and outside trees and the amount of annual descent -
• Environmental Noise Survey in Yokohama City (First Report) - Outdoor and Indoor Noise by Restricted Area -
• Environmental Noise Survey in Yokohama City (No. 2) - Outdoor and indoor noise divided by distance from arterial roads and the number of lanes on adjacent roads -
• Vibration surveys in road tunnels
• Characteristics of ecosystems found at the headwaters of hills
• Study on the Ecology of Nuka shrimp distributed in the northern part of Yokohama City: Comparison of the morphology and breeding ecology of the two regional populations of Kohoku New Town District No. 3 Park and Children's Nature Park-
• Survey of the dynamics of riverbed pollutants in urban rivers (No. 1)-Tsurumi River-
• Water quality survey in urban rivers-Tsurumi River, Toriyama River-
• Research on water purification methods for river water (No. 2)
• Study of wide-area water quality based on TM data - chlorophyll a and turbidity distribution in Tokyo Bay -
• Basic research on the recycling of wastewater treatment sludge (6 reports)-Evaluation of deodorizing performance of odors at sewage treatment plants by fixed microorganisms using solidified particles of sewage sludge incineration ash-
• Development of engine-powered augers
• Survey on groundwater in Yokohama (3) - Aquifers and groundwater environments distributed in the Sakaigawa and Katabira River basins -
• Study on subsidence of soft ground (6) - Analysis of subsidence characteristics by layer of subsidence zone in subsidence zone -
• Interim Consideration on Dragonfly Eco-Up -Focusing on the Case of Honmoku Citizen Park -
• Concentration of CFCs and organic chlorine-based substances in the atmosphere in Yokohama using a diffusion-type long-term exposure sampler (2)
• Acid rain survey in Yokohama City - Results of 1991
• About growth of mizuwata (1) About growth and change of water quality in liquid medium
• Consider treatment methods for wastewater containing manganese from landfill sites (2)
• Biological surveys of elementary school pools and municipal pools