PPT-Lec.5 Noise Pollution 4

th year The Environmental Effects of Noise 51 The Ear When a sound wave enters the ear it sets the eardrum into oscillation which in turn causes oscillation of the three tiny bones in the middle ear called the ossicles Fig51 This oscillation is finally transmitted to the fluidfilled inner ear the motion of the fluid disturbs hair cells within the inner ear which transmit nerve impulses to the brain with the information that a sound is present T. EPA can also help identify the right authority to contact for other noise complaints Visit epavicgovau for more information on noise pollution Environment Protection Authority Victoria EPA Victoria is the states independent environmental regulator U lnput at 1kHz 1mV RMS PreEmphasized FREQUENCY Hz 20 02000 DEVIATION dB 00 020000 040000 060000 100 1k 10k 50k 04000 06000 08000 1000 080000 10000 18V 25 25 MEASURED COMPUTER SIMULATED T1115 TA02 INPUT SELECT PER PHOTO CART RIDGE COM IN 475k MM 100 Pollution Control to save. the Earth. Environmental Pollution: . Definition – Causes, pollution effects and control measures of Air, Water, Soil, Marine, Noise, Thermal, Nuclear hazards. Solid waste management: causes, effects and control measures of urban and industrial wastes, pollution measures, case studies, Disaster management: floods, earthquake, cyclone and landslides.. LAND & WATER POLLUTION. By . Dr. Frank Elwell. The Environment. THROUGHOUT HUMAN HISTORY, PEOPLE'S ACTIVITIES HAVE HAD AN ENORMOUS IMPACT ON THE PHYSICAL WORLD, AND NEW ENVIRONMENTAL PROBLEMS HAVE BEEN CREATED BY THE SOLUTIONS TO OLD ONES.. There are 3 major sectors of society that cause water pollution ….. What are they?. Industry –. W. hat . pollutants does this create?. Gas. Oil. Plastics. Mining. Batteries. Radioactive materials. Lecture . 03. Thomas Herring, MIT. Room 54-820A. tah@mit.edu. . 04/05/2012. Track Lec 03. 2. Kinematic GPS. The style of GPS data collection and processing suggests that one or more GPS stations is moving (e.g., car, aircraft). Habitat. Ecosystem. Wetland. Sediment. Food chain. Benthos/Benthic . Bioaccumulation. Pollution. What is pollution?. What does pollution look like? Smell like? Taste like?. What are examples of pollution near your school?. A tour through models, interpretations, analogies, and laws . Gil Kalai. Einstein Institute of Mathematics. Hebrew University of Jerusalem. ICM 2018, beautiful Rio. Outline: two puzzles, four parts, six theorems, eight models. In developing countries, water pollution is caused mainly from dumping raw sewage into the water supply.. In developed countries, water pollution comes mainly from 3 sources. Municipal pollution. Industrial pollution. Noise & Hearing Loss The risk and prevention Construction Noise & Hearing Loss Prevention Exercise B-1 Noise – What are the risks? The Cost of Hearing Loss How loud is too loud? NIOSH Sound Level Meter app for iPhones The saddest noise, the sweetest noise Emily Dickinson Lecture 15 th Nov 2011 Alison Aitken The saddest noise, the sweetest noise, The maddest noise that grows, The birds, they make it in the spring, on Fish, Invertebrates, and Ecosystem Services. Lindy Weilgart, Ph.D.. OceanCare. , Switzerland. &. Department of Biology. Dalhousie University. Halifax, Nova Scotia CANADA. Sound in the Water. Speed of sound in seawater is about 5x that in air. Ass.Prof. . . Shatha. AJ Ibrahim. Environmental Engineering Department. College of Engineering. University of Al-. Mustansiriyah. ‎6-Provide mufflers (silencer): the devices can be classified into 2 fundamental groups: Absorptive ‎muffler (is one whose noise reduction is determined mainly by the presence of fibrous or porous ‎materials, which absorb the sound). The attenuation produced, in dB per meter run of duct, depends ‎on α, the sound absorption coefficient of the lining material and the ratio of perimeter to cross ‎sectional area of the duct (P/S).‎. produced by different activities. Stay safe.   . Whether you are a scientist researching a new medicine or an engineer solving climate change, safety always comes first. An adult must always be around and supervising when doing this activity. You are responsible for:.