From Newsgroup: rec.music.classical

<div>Noise pollution can cause health problems for people and wildlife, both on land and in the sea. From traffic noise to rock concerts, loud or inescapable sounds can cause hearing loss, stress, and high blood pressure. Noise from ships and human activities in the ocean is harmful to whales and dolphins that depend on echolocation to survive.</div><div></div><div></div><div>Noise pollution is an invisible danger. It cannot be seen, but it is present nonetheless, both on land and under the sea. Noise pollution is considered to be any unwanted or disturbing sound that affects the health and well-being of humans and other organisms.</div><div></div><div></div><div></div><div></div><div></div><div>noise pollution ppt free download</div><div></div><div>Download: https://t.co/GRFYLCs3Ab </div><div></div><div></div><div>Noise pollution impacts millions of people on a daily basis. The most common health problem it causes is Noise Induced Hearing Loss (NIHL). Exposure to loud noise can also cause high blood pressure, heart disease, sleep disturbances, and stress. These health problems can affect all age groups, especially children. Many children who live near noisy airports or streets have been found to suffer from stress and other problems, such as impairments in memory, attention level, and reading skill.</div><div></div><div></div><div>Noise pollution also impacts the health and well-being of wildlife. Studies have shown that loud noises can cause caterpillars' dorsal vessels (the insect equivalent of a heart) to beat faster, and cause bluebirds to have fewer chicks. Animals use sound for a variety of reasons, including to navigate, find food, attract mates, and avoid predators. Noise pollution makes it difficult for them to accomplish these tasks, which affects their ability survive.</div><div></div><div></div><div>Increasing noise is not only affecting animals on land, it is also a growing problem for those that live in the ocean. Ships, oil drills, sonar devices, and seismic tests have made the once tranquil marine environment loud and chaotic. Whales and dolphins are particularly impacted by noise pollution. These marine mammals rely on echolocation to communicate, navigate, feed, and find mates, and excess noise interferes with their ability to effectively echolocate.</div><div></div><div></div><div>Seismic surveys also produce loud blasts of sound within the ocean. Ships looking for deep-sea oil or gas deposits tow devices called air guns and shoot pulses of sound down to the ocean floor. The sound blasts can damage the ears of marine animals and cause serious injury. Scientists believe this noise may also be contributing to the altered behavior of whales.</div><div></div><div></div><div>Among those researching the effects of noise pollution is Michel Andre, a bioacoustics researcher in Spain who is recording ocean sounds using instruments called hydrophones. His project, LIDO (Listening to the Deep Ocean Environment), collects data at 22 different locations. Back in the lab, computers identify the sounds of human activities as well as 26 species of whales and dolphins. The analysis aims to determine the effects that underwater noise is having on these animals. Andre hopes his project will find ways to protect marine animals from the dangers of ocean noise.</div><div></div><div></div><div>Traffic noise alone is harmful to the health of almost every third person in the WHO European Region. One in five Europeans is regularly exposed to sound levels at night that could significantly damage health.</div><div></div><div></div><div>Each of us has the ability to reduce noise in our community by being aware of the noise we make as residents, workers, or as businesses. Noise pollution is regulated by local governments. We do not have authority to enforce noise pollution laws and ordinances, but we have provided model regulations that local governments can use. In many cases, local governments have their own noise ordinances. In localities that don't have a noise ordinance, our regulations are what are enforced by local authorities.</div><div></div><div></div><div></div><div></div><div></div><div></div><div>To learn more about how to manage a noise pollution problem read our Frequently Asked Questions for Residents and Frequently Asked Questions for Local Government. If you have a noise complaint or questions about noise enforcement, contact your local government.</div><div></div><div></div><div>Over the last century, human activities such as shipping, recreational boating, and energy exploration have increased along our coasts, offshore, and deep ocean environments. Noise from these activities can travel long distances underwater, leading to increases and changes in ocean noise levels in many coastal and offshore habitats.</div><div></div><div></div><div>These rising noise levels can negatively impact ocean animals and ecosystems. Higher noise levels can reduce the ability of animals to communicate with potential mates, other group members, their offspring, or feeding partners. Noise can also reduce an ocean animal's ability to hear environmental cues that are vital for survival, including those key to avoiding predators, finding food, and navigating to preferred habitats.</div><div></div><div></div><div>We know that a sound is a form of energy. Sometimes the sound can be soothing to listen to and, at times, loud to hear. Sound can travel in the air and is produced by the vibration of objects. Regular exposure to a higher sound level that impacts humans and other living organisms is known as sound pollution. This article will help us understand what noise pollution is, the types of noise and pollution, and its causes and examples.</div><div></div><div></div><div>It mainly consists of traffic noise which has increased in recent years with the increase in the number of vehicles. The increase in noise pollution leads to deafening of older people, headache, hypertension, etc.</div><div></div><div></div><div></div><div></div><div>A study based on the Acoustic Integration Model (AIM) predicts that humpback whales in Glacier Bay are exposed to less underwater noise from large vessels when there are slower ships, fewer ships, or ships that are scheduled to arrive an hour apart.</div><div></div><div></div><div>Overall, these results suggest that the most effective way to reduce humpback whale exposure to underwater noise from cruise and tour vessels is to reduce cruise ship speed or numbers. Adjusting ship schedules may also be beneficial by allowing longer relatively quiet intervals between ship noise events.</div><div></div><div></div><div></div><div>The work summarized here was made possible by the cooperation of tour vessels and cruise ships who voluntarily allowed park scientists, in cooperation with acousticians with the U.S. Navy, to measure the underwater noise produced by each vessel at different speeds. Model results like these are an important first step toward understanding the acoustic effects of management decisions and protecting park resources while allowing visitors to enjoy the park.</div><div></div><div></div><div></div><div>Frankel, A. S. and Gabriele, C. M. 2017. Predicting the acoustic exposure of humpback whales from cruise and tour vessel noise in Glacier Bay, Alaska, under different management strategies. Endangered Species Research 34:</div><div></div><div>397-415.</div><div></div><div></div><div>The policy of the state is to promote an environment free from noise to the extent that it jeopardizes the health and welfare of the citizens of the State of Connecticut. The first point of contact for the resolution of local noise issues is your local government official. In some towns the local Department of Health can assist, while in others you will need to contact Town Hall to identify the appropriate official.</div><div></div><div></div><div>Note: As of 1/21/2016 the Torrington Area Health District has repealed their noise ordinance. The ordinance covered the following towns: Bethlehem, Cornwall, Goshen, Harwinton, Kent, Litchfield, Morris, Norfolk, Plymouth, Salisbury, Thomaston, Torrington, Warren, Watertown, and Winchester.</div><div></div><div></div><div>Research also reveals how noise pollution connects with climate change. Many contributors to global warming generate noise, chief among them transportation and fossil fuel extraction and processing. Urban sprawl and deforestation destroy natural carbon absorption reservoirs while removing natural sound buffers. Technologies that help people deal with climate change, like air conditioners and generators, can be noisy. Conversely, certain climate mitigation strategies such as creating green spaces in concrete jungles offer opportunities to muffle noise.</div><div></div><div></div><div>James led a seminal 2017 study, published in Environmental Health Perspectives, which shows that people in neighborhoods with low socioeconomic status and higher proportions of residents of color bear the brunt of noise pollution in this country.</div><div></div><div></div><div>Another branch of inquiry focuses on how vibrations from noise can cause impairments. Part of the answer lies in the stress-response system. Researchers have found that the more people are bothered by noise, the greater the health risks they face from it. Yet, even those who tune out noise pollution, whether when awake or asleep, experience autonomic stress reactions.</div><div></div><div></div><div>Ahmed Tawakol, an HMS associate professor of medicine at Massachusetts General Hospital, and Michael Osborne, an HMS instructor in medicine at Mass General, have used advanced PET scanning to show that transportation noise is associated with heightened activity of the amygdala relative to regulatory cortical regions. Amygdalar activity can trigger stress pathways, including inflammation, that can lead to cardiovascular and metabolic diseases. Participants with a higher ratio of amygdalar to cortical activity had more risk for adverse outcomes in follow-up. The link persisted even after accounting for other disease risk factors.</div><div></div><div></div><div>While many of us have grown accustomed to these everyday sounds, we notice sounds more when they disrupt our everyday activities, such as sleeping or conversations. For example, while walking by the railroad, a passing train may not cause discomfort, but if the loud noise of a passing train wakes you from your sleep, you will be more aware of the noise.</div><div></div><div></div><div>The World Health Organization (WHO) has reported that environmental noise features among the top environmental risks to health, with an estimated 1 million healthy years of life lost every year from environmental noise effects, including annoyance, sleep disturbance, and ischaemic heart disease.</div><div></div><div></div><div>World Health Organization findings have shown that noise is the second largest environmental cause of health problems, just after the impact of air pollution. These health impacts are likely to be underestimated, with new World Health Organization evidence demonstrating effects at levels below the 85 decibels obligatory Environmental Noise Directive (END) thresholds.</div><div></div><div> df19127ead</div>
--- Synchronet 3.21a-Linux NewsLink 1.2