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俄美科学家共同研发出核污染水的廉价净化技术
俄美科学家 核污染水 廉价 净化技术
2017/6/20
俄罗斯喀山联邦大学与美国莱斯大学联合研发出核污染水的廉价净化技术,相关的研究成果刊登在美国《Carbon》科学杂志上。该工艺采用的原材料有两种:一种是被称之为“C-seal F”的碳材料,现主要作为石油开采业中钻井液添加剂来使用;第二种为自然界中的天然次石墨,两种材料均成本低廉。采用氧化剂对碳材料进行处理,提高其比表面积并在材料结构中添加氧元素,形成氧化改性碳材料。所获得改性碳材料可从核污染水中高...
A highly toxic water pollutant, known as perfluorooctanoic acid (PFOA), last year caused a number of U.S. communities to close their drinking water supplies. Because of its historical use in Teflon pr...
West Virginia groundwater not affected by fracking, but surface water is
West Virginia groundwater not affected by fracking surface water is
2017/4/27
Fracking has not contaminated groundwater in northwestern West Virginia, but accidental spills of fracking wastewater may pose a threat to surface water in the region, according to a new study led by ...
2017年4月2-8日,复旦大学兼职教授、德国莱布尼兹对流层研究所(TROPOS)副所长Hartmut Herrmann教授和复旦大学兼职教授、法国里昂催化与环境研究所(CNRS-IRCELYON)副所长Christian George博士来复旦大学与重点实验室访问,并在8日分别做了题为“Aerosol particle organic mass formation: HOMs uptake an...
华东师范大学生态与环境科学学院夏建阳教授、美国俄克拉荷马大学骆亦其教授和阿拉斯加大学David McGuire教授课题组合作的研究评估了十个国际主流陆面模式对北半球冻土区碳循环的模拟情况。该研究发现,当前的全球碳循环模型对冻土区生态系统的净碳输入(即净初级生产力)的模拟存在巨大不确定性。
欧盟联合研究中心(JRC)近日公布了对多瑙河大区域空气污染的一项研究结果。结果显示,该区域主要城市的PM2.5污染来源中,住宅供暖占到35%,其次是农业(32%)、能源生产/工业(30%)和交通(25%)。为增强该区域空气污染治理的有效性,需要整合能源、交通等部门的政策和相关体制机制。
Brake Dust May Cause More Problems Than Blackened Wheel Covers
Brake Dust Blackened Wheel Covers
2017/3/14
Though tailpipe emissions could fall in the years ahead as more zero-emission vehicles hit the streets, one major source of highway air pollution shows no signs of abating: brake and tire dust.Metals ...
Concurrent heat waves,air pollution exacerbate negative health effects of each
Concurrent heat waves air pollution exacerbate negative health
2017/3/14
The combination of prolonged hot spells with poor air quality greatly compounds the negative effects of each and can pose a major risk to human health, according to new research from the University of...
近日,中科院地球环境研究所与英国里丁大学国家大气研究中心等科学家,系统探讨了大陆漂移和高原隆升对亚洲和澳大利亚季风起源和演化的影响,结果发现南亚、东亚及澳大利亚季风起源的时间不同,而且形成原因也不一样。相关成果发表于《科学报告》。
适应地球环境新常态 专家提出生态环保新思路
地球环境新常态 生态环保新思路 人口增长 气候变化
2017/2/13
一个国际专家小组在新一期美国《科学》杂志上发表报告指出,面对人口增长和气候变化,环保主义者应该利用新形成的生态系统,注重维护生态系统结构与功能的多样化,增进生态系统的适应能力,而不应总是试图让生态系统保持过去的状态。专家指出,地球面貌已经发生极大变化。人类活动改变了地球上47%没有冰雪覆盖的地方,形成了新的生态系统。这种新常态未来还会出现更多。新生态系统汇集了工业社会前并不存在的物种或系统,包括农...
Fast food packaging contains potentially harmful chemicals that can leach into food
Fast food packaging potentially harmful chemicals leach into food
2017/2/16
Many Americans, with the start of the New Year, will resolve to cut back on fast food to avoid an overload of fat and calories. Yet, there is another reason to resist the temptation to indulge in fast...
New technique IDs micropollutants in New York waterways
IDs micropollutants New York waterways
2017/2/16
Cornell engineers hope that clean water runs deep. They have developed a new technique to test for a wide range of micropollutants in lakes, rivers and other potable water sources that vastly outperfo...
新一代光敏二氧化钛复合材料应对大气污染
氮氧化物 大气污染 光敏二氧化钛 复合材料
2016/12/14
氮氧化物是现代城市大气污染物的最主要来源,光敏二氧化钛(TiO2)复合材料自上世纪90年代中期问世以来,以其能将大气氮氧化物催化氧化成无毒无害硝酸盐的独特功能,在欧盟范围内得到快速的商业化应用。混合约4%比例光敏复合材料的混凝土涂层技术,不仅具备自清洁功能,还可有效吸附大气中高达80%以上的氮氧化物,被广泛应用于建筑和道路等公共基础设施建设领域,以应对大气污染。但高浓度大气污染往往伴随着严重的雾霾...
Against the Tide:Fish Quickly Adapt to Lethal Levels of Pollution
Tide Fish Quickly Adapt Lethal Pollution
2016/12/13
Evolution is allowing some urban fish to survive in a lethal, human-altered environment, according to new results published in the journal Science.
While environmental change is outpacing the rate of...
Everglades mangroves' carbon storage capacity worth billions
Everglades mangroves carbon storage capacity worth billions
2016/11/29
When it comes to storing carbon, scientists have put a price tag on the value of mangroves in South Florida's Everglades -- and it's in the billions.Mangrove forests absorb carbon dioxide, and much of...