2020年7月1日 We provide a brief overview of the history of concrete, discuss some of the direct and indirect effects of concrete on aquatic ecosystems, and encourage planners, engineers,
More2020年11月3日 According to the National Ready Mixed Concrete Association, each pound of concrete releases 0.93 pounds of carbon dioxide. Since concrete is such a widespread item, the amount of CO2 released in the industry
MoreThe deterioration of concrete structures by seawater is more due to leaching rather than expansion of concrete. Leaching more effects the small concrete structures than expansion while large concrete structures are effected by
More2022年12月3日 How concrete contributes to environmental injustice Air Pollution. Cement production emits large amounts of toxic substances into the air, which can worsen air quality and lead to respiratory diseases.
More2018年1月8日 The production of concrete has a notable contribution to the global water demand, reflected by the country-specific statistics for cement manufacturing and the models
More2023年5月24日 One way to address the water availability issue for concrete is to use seawater in concrete. Hydration promoted by seawater may help conserve save the available
More2021年8月1日 The main findings of this review reveal that although harmful ingredients in seawater may weaken some of the concrete performances, applying proper curing conditions
More2022年3月22日 Cement making is responsible for about 7% of annual CO₂ emissions. But without concrete, many of the world’s most impressive buildings and structures – such as Australia’s Sydney Opera House...
More2020年3月23日 Nature Climate Change - Concrete production emits high levels of GHGs. It also causes air pollution, with emissions of particulate matter as well as nitrogen and sulfur
More2022年5月9日 Plastic is one of the most enduring materials man has created. Nowadays, we all know that it can take hundreds of years for plastic to degrade, and research is showing that it is possible that it does not even fully degrade,
More2021年1月7日 Ocean pollution is caused by the introduction of toxic materials and harmful pollutants such as agricultural and industrial waste, chemicals, oil spills, and plastic litter into the ocean waters. Careless human activity has
More2021年10月7日 These balls of grease and wipes can block sewer pipes and result in sewage overflows that pollute waterways and our ocean. New legislation addressing disposable wipes will ensure these wipes are labeled
More2024年6月8日 The Ocean Conservancy compiled a list of the top 10 items found during clean-ups, with five of them being plastic products. So which items pollute our oceans the most? 1. Cigarettes. The number one item found during the clean-up was cigarettes and cigarette filters.
More2022年12月3日 Nature magazine estimated that the concrete industry was responsible for 9 percent of all water withdrawals from industry. Approximately 16.6 km squared of water are used annually for concrete production, and this figure is expected to soar as the demand for concrete continues to rise.
More2022年6月7日 Ocean pollution in the form of fossil fuels, trash, offshore drilling, and noise is harming marine life. Learn what you can do to reduce harm to our oceans. We’re drowning marine ecosystems in ...
MoreThe US Navy, she adds, does its best to protect marine wildlife: "Sonar is well-regulated but in wartime those regulations are lifted – the navy is making extraordinary efforts to tag, track and ...
More2023年7月12日 At Ocean Conservancy, we’re calling for a 50% reduction in single-use plastics production globally by 2050, ... we will still need to recover 40% of the plastics that pollute the ocean each year to reverse course and get back to 2010 pollution levels.
MoreThe top five countries that pollute the ocean the most with plastic waste include the Philippines, China, Sri Lanka, Vietnam, and Indonesia, as reported by World Atlas. How does the ocean clean our air? Over the last few decades, approximately 30 percent of the carbon dioxide we’ve released into the atmosphere has found its way into the ...
More2023年12月13日 There’s nothing quite like standing on a shoreline and looking out at the great expanse of blue that is the ocean. Sadly, instead of protecting it, we’re polluting it. Ocean pollution is a complex, pervasive problem driven by consumer lifestyles. It wreaks havoc on ocean ecosystems the world over.
More2021年11月4日 The grisly matter of raw sewage entering natural water bodies was a massive ocean issue in the 1980s and 1990s until new laws were introduced, enforcing the treatment of wastewater before its release into the
More2022年1月18日 Making cement also emits a lot of dangerous air pollution that’s linked to an array of health harms; the cement industry is the third largest source of industrial air pollution such as sulfur ...
More2024年1月18日 Calculations of artificial reef physical footprint revealed that intentionally reefed structures such as ships, concrete pipes and bridges occupied 19.23 km 2 of the US ocean in 2020 (Fig. 1a,b ...
More2023年6月5日 Plastic Pollution in China. Plastic pollution has long plagued China, along with severe air pollution. Not only does the country consume at least one fifth of the world’s plastics, it is also the single largest producer and exporter of single-use and virgin plastics (meaning new plastics made without any recycled materials), and up until 2018, the largest importer of plastic
MoreOnce the plastic is in the ocean, it decomposes very slowly, breaking into tiny pieces known as microplastics, which can enter the marine food chain and become incredibly damaging to sea life. The main source of ocean plastic pollution is land-based—80% of plastic in the ocean originates on land. But what does that really mean?
MoreThe concentration of radioactive waste in the concrete drums varies as does the danger to marine life and humans. The Problems with Ocean Dumping. Although policies on ocean dumping in the recent past took an “out of sight- out of mind” approach, it is now known that accumulation of waste in the ocean is detrimental to marine and human health.
More2021年2月1日 Ocean pollution is widespread, worsening, and poses a clear and present danger to human health and wellbeing. But the extent of this danger has not been widely comprehended – until now.
MoreNonpoint source pollution can make river and ocean water unsafe for humans and wildlife. In some areas, this pollution is so bad that it causes beaches to be closed after rainstorms. More than one-third of the shellfish-growing waters of the United States are adversely affected by coastal pollution.
More2024年6月26日 Image courtesy of Ocean Conservancy. Once in the environment, trash can travel long distances via wind, stormwater conveyances, streams, and rivers (visit the Last Stop: The Ocean website to learn more about the journey of litter). Aquatic trash becomes marine debris, or marine litter, once it reaches the ocean.
More2021年2月11日 According to a recent study, ocean pollution is a growing problem which has a negative impact on human health. Humans can ingest toxic and dangerous chemicals by eating seafood which was exposed to this pollution. Ocean pollutants also damage the environment and spread harmful microorganisms.
More