Articles tagged with Noise Pollution
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Researchers evaluated the hearing sensitivity of Kemp's ridley sea turtles, finding they are most sensitive to low-frequency sounds produced by ships and machinery. This understanding will inform efforts to monitor and mitigate noise impacts on these endangered species.
A new study found that pink noise can reduce restorative REM sleep and interfere with sleep recovery, while earplugs were more effective in protecting sleep against traffic noise. The findings challenge the widespread use of ambient sound machines and apps marketed as sleep aids.
A new study by Anglia Ruskin University found that firework displays trigger erratic flight patterns, abandoned roosting sites, and gathered in unusual locations among corvids. The study highlights the prolonged stress and disruption caused by firework noise and light pollution.
A study of individuals with autism, fetal alcohol syndrome, and typical hearing found that cognitive ability significantly impacted successful speech perception in noisy environments. The researchers discovered a highly significant relationship between intellectual ability and multitalker listening challenge scores.
The Kavli Foundation and NSF have announced new grants to explore how nervous systems respond, resist, or recover from the challenges of a changing world. This research aims to uncover fundamental principles of neurobiology and reveal how animals adapt cognitively and behaviorally to a changing world.
A new study revisits forecasts made in 2002 about the world's rocky shorelines, finding some threats have materialized while others have not. The researchers highlight the importance of addressing issues like ocean acidification and plastic pollution to protect coastlines.
Researchers found whales and dolphins, including an endangered sperm whale, in the Clarion Clipperton Zone, a vast area of deep ocean and seamounts. Chronic exposure to mining noise could disrupt key behaviors, leading to cascading ecological consequences.
A study by Udelar and UPF found that noise pollution generated by human activity can be a significant stressor for Antarctic fauna. The researchers recorded sounds on Ardley Island and concluded that the power generator altered the island's soundscape, potentially affecting animal behavior and welfare.
Researchers at Purdue University have developed a metamaterial that can significantly reduce underwater noise generated by offshore wind farm installation. The technology, which uses carefully arranged plates to trap air and guide sound, achieves a 40-decibel reduction in noise levels.
A study by Trinity Consultants identifies effective means of controlling data center noise, including sound barriers and low-frequency resonators. The goal is to create a quieter breed of data centers that can coexist with residential areas, protecting residents from excessive noise.
A new study reveals that Galapagos yellow warblers are changing their behavior in response to traffic noise, with those living near roads showing increased aggression. The birds adapt by adjusting the frequency of their songs to help them be heard above the noise.
Marine animals are being used to gather valuable data on human impact on the ocean. Biologging, attaching sensors to wild animals, provides insights into environmental conditions and behaviors. The goal is to develop an 'Internet of Animals' with shared standards for data sharing, enabling targeted policies and a sustainable coexistence.
The initiative focuses on promoting conscious design processes to create quieter products, buildings and transportation systems to reduce noise pollution. By adopting a systems-thinking approach, it will address the root causes of noise and its impacts on people, environment and economy.
A new study found that exposure to high aircraft noise levels can lead to stiffer and thicker heart muscles, increasing the risk of poor heart function and major cardiac events. People exposed to night-time aircraft noise were particularly at risk, with increased risks of heart attacks, life-threatening rhythms, and strokes.
A study published in the Journal of the American College of Cardiology found that people exposed to high aircraft noise levels had stiffer and thicker heart muscles, which contracted and expanded less easily. This was especially true for those exposed to higher noise at night, potentially due to impaired sleep and stress responses.
A pioneering study at Guildford's Sandfield Primary School demonstrates the benefits of protective green infrastructure in reducing particle pollution levels and traffic-related noise. The 'living school gate' installation showed a nearly one-third reduction in air pollution, as well as a 5-decibel decrease in distracting traffic noise.
Research finds opposing effects of short-term and continuous noise on Western Bluebird parental behavior, with potential implications for wildlife resilience to noise pollution. Short-term noise reduces provisioning rates, while continuous noise may foster adaptive behaviors.
A new study using wearable devices and questionnaires found that people exposed to higher levels of night-time aircraft noise experienced more restlessness during sleep and disrupted daily sleep rhythm. The results suggest a link between night-time aircraft noise exposure and sleep disturbance, with potential long-term effects on health.
A study highlights significant air and water pollution near industrial zones in Delta, Nigeria, posing risks to human health and the environment. The analysis found elevated levels of pollutants, including particulate matter, sulfur dioxide, and heavy metals, affecting respiratory health and other health issues.
Researchers propose a novel compact meta-silencer design leveraging acoustic black hole and rainbow trapping effects to reduce low-frequency noise. The study demonstrates improved performance with coiled-up slits, achieving an average sound transmission loss of 6.73 dB across a broad frequency band.
Underwater noise pollution from human activities significantly impacts the ability of orcas to hunt successfully in the Salish Sea. The study found that increased ambient noise levels, particularly around vessel propellers, interfere with echolocation behavior and hunting efforts. This hindrance affects females more than males, potenti...
A worldwide survey by Goethe University Frankfurt found that students in environmental studies are unaware of the main causes of biodiversity loss. The study identified eight response types with varying levels of understanding, with climate change being underestimated in many countries. The researchers suggest that this lack of knowled...
Little Penguins can hear sounds across a broad range between 200 and 6,000 Hz underwater, similar to other diving birds. Continuous exposure to high noise levels may increase stress and interfere with feeding behaviors.
A study using crowd-sourced data from iNaturalist found that slugs and snails are more common in urban areas than other native species. In contrast, butterflies and moths were the least tolerant of urban environments. The analysis provides valuable insights for city planners to increase urban biodiversity.
A study of over 9,000 participants found that small increases in fine particulate matter during pregnancy and childhood were associated with more psychotic experiences and depression symptoms later in life. Higher noise pollution exposure in childhood and teenage years was linked to increased anxiety symptoms.
Early-life air and noise pollution exposure were associated with increased risk of psychotic experiences, depression, and anxiety from adolescence to young adulthood. Interventions to reduce pollution exposure could potentially improve population mental health.
Harbor porpoises spend up to 60% of their day hunting small fish to stay warm in cold waters. New research shows that this strategy makes them more vulnerable to noise from motor boats and disturbances from humans.
An attorney and retired mechanical engineer highlights the need for infrastructure or limitations on play to address noise nuisance complaints from neighbors. He recommends building courts far from homes or using less noisy paddles and balls to mitigate the issue.
A recent survey on aircraft noise and annoyance conducted during the pandemic era reveals flaws in existing methods to assess and mitigate noise impacts. The study suggests that annoyance levels are a proven correlation to overall noise levels, contradicting current industry practices.
A new study from the University of Washington finds that Navy Growler jet noise in Whidbey Island exposes over 74,000 people to harmful levels of noise. The research reveals that repeated exposure to high-intensity and low-frequency noise can lead to stress hormone responses, hearing impairment, and sleep disturbance.
A team of researchers from MIT created a lightweight, compact, and efficient mechanism to reduce noise transmission using a sound-suppressing silk fabric. The fabric uses vibrations to cancel out unwanted sounds in two different ways, one for small spaces and another for larger areas like rooms or cars.
A new study published in Stroke found that exposure to artificial, bright outdoor nighttime light may increase the risk of cerebrovascular disease and stroke. The research, which analyzed data from over 28,000 adults living in China, suggests that higher levels of outdoor light pollution at night may be a risk factor for these conditions.
A new study highlights the wide range of urban exposures during early childhood that can influence growth and development, including air and noise pollution, overcrowding, and limited green space. The first 2000 days of life are a critical period for physical, cognitive, social, and emotional health outcomes.
A new study from Simon Fraser University examines the Canadian military's efforts to reduce underwater noise pollution impacts on species during training exercises. However, researchers highlight limitations in the current plan, including a narrow focus on marine mammals and lack of consideration for fish and invertebrates.
A study by Colorado State University found that redlined communities experience higher maximum noise levels, detrimental effects on urban ecosystems, and increased human health risks like hearing loss and stress. The research highlights the need for equitable planning and noise mitigation to benefit both people and wildlife.
New research reveals that endangered whales and dolphins inhabit the Hellenic Trench off Greece year-round, challenging seismic surveys and oil and gas exploration. The study confirms the presence of four species, including sperm whales, in both summer and winter, highlighting the need for conservation measures.
The American Academy of Pediatrics warns that children are exposed to potentially harmful noise from infancy, with cumulative effects over a lifetime. Families can reduce risk by limiting exposure to loud music, using protective earmuffs, and advocating for reduced noise spaces in childcare settings.
A WVU team is providing free technical assistance to local industrial facilities to reduce their impact on environmental and community health. The project aims to support businesses in making changes that benefit their communities while maintaining profitability.
New research finds that pied tamarins increase scent marking in response to urban noise pollution, which affects their vocal communication. This adaptation may help them cope with the impact of human activity on their habitat.
Researchers found that two common songbirds have smaller eyes than their counterparts from less bright outskirts, adapting to urban light. This study suggests that sensory pollutants like human-caused light may play a role in the decline of bird populations.
Designers created bespoke hospital scrubs and 3D-printed chill out pods to reduce stress and improve workplace mental health. The project, funded by WorkWell Mental Health Improvement Fund, aims to create safe environments for healthcare workers.
A laboratory study found that exposure to background traffic noise, even at 40 dB, significantly impairs concentration and perceived workload. Researchers also highlight the difficulties in avoiding high-frequency noise indoors due to reduced vehicle speeds.
A new study found that people exposed to moderate aircraft noise were less likely to get the minimum recommended sleep each night. The risk increased among those living near airports or large water bodies, as well as those with no hearing loss. Exposure levels as low as 45 dB were associated with short sleep duration.
A new study published in JACC: Advances confirms that exposure to road traffic noise can elevate hypertension risk. The research analyzed data from over 240,000 people and found a robust association between road traffic noise and hypertension, even after adjusting for air pollution.
Human activities are causing rapid changes to the ocean soundscape, harming invertebrates through cellular and ecosystem-level impacts. The study highlights the sensitivity of various invertebrates to underwater sound and emphasizes the need for urgent research and mitigation strategies.
Researchers at Chalmers University of Technology have developed a propeller design optimisation method that paves the way for quiet, efficient electric aviation. The new design can reduce noise emissions by up to 5-8 dBA, comparable to going from a normal conversation voice to a quiet room.
A new study by McMaster University researchers found that redesigned medical alarms with musical tones can improve speech recognition and reduce annoyance. The study suggests that changing the sounds of medical devices can make alarms less disruptive, allowing for better staff communication and reducing recovery times.
A study published in Current Biology found that dolphins 'shout' over loud underwater noise to complete a cooperative task, but their success rate decreases as noise levels increase. The researchers observed changes in dolphin body language and vocalization patterns in response to the increasing noise.
A new study found that noise from one mine alone could travel approximately 500 kilometers in gentle weather conditions, with cumulative impacts likely in areas with multiple mines. The deep sea is home to organisms found nowhere else on Earth, and mining activities could have untold impacts on these species.
A new study published in Ecological Applications found that urban density has a stronger correlation with house sparrow health than other environmental factors like light pollution or noise levels. The researchers also discovered high lead levels in the birds' bodies, which could be linked to bioaccumulation from food sources.
A study published in PLOS Medicine found that children exposed to road traffic noise in schools have slower attention and working memory development compared to those in quieter environments. The research suggests potential implications for environmental noise policies protecting school environments.
A study published in PLoS Medicine found that traffic noise at schools is detrimental to working memory and attention in primary-school students. Children attending schools with higher levels of traffic noise showed slower cognitive development, with a 5 dB increase resulting in a 11.4% slower development rate.
Researchers used mathematical modeling to identify effective solutions, including strategically placed berms. A civil conversation between the source of the noise and the receiver is also crucial in finding an agreeable outcome.
New research shows that motorboat noise disrupts parental behaviors in coral reef fish, but reducing noise levels improves breeding success. On quieter reefs, 65% of nests contained offspring, compared to 40% on busy reefs. The study suggests that acoustic sanctuaries can help build resilience on coral reefs.
A new study found that the health impacts of 2020 lockdowns varied across three European cities, with physical activity levels declining by up to 95% and resulting in increased diagnoses of heart attacks, strokes, depression, and anxiety. In contrast, decreases in air pollution and noise had positive effects on health.
A study found that living near high levels of transportation noise increases the risk of heart attack by 72%, with 5% of hospitalizations attributable to elevated noise levels. Noise exposure can cause chronic stress, sleep disturbances, and emotional distress, leading to cardiovascular health issues.
A study of 749 European cities found nearly 60 million adults subjected to unhealthy vehicle-generated noise, with compliance to WHO guidelines potentially preventing 3,600 annual deaths from ischaemic heart disease. Over 11 million adults were highly annoyed by road traffic noise, leading to increased stress and health problems.
The UN Environment Programme's latest Frontiers Report identifies three critical environmental issues: urban noise pollution, wildfires, and phenological mismatches. These issues pose significant risks to public health and ecological systems, emphasizing the need for urgent action.
Researchers used owl wing characteristics to inform airfoil designs and significantly reduce trailing-edge noise in aeronautical and turbine engines. The study found that asymmetric serrations reduced noise more than their symmetric counterparts.
A recent study reveals that narwhals are highly affected by noise pollution from ships and seismic airgun pulses, triggering stress and altering their behavior. Researchers hope that better management of noise pollution will protect these unique Arctic animals.