洛杉矶盆地上百处沼气泄露点已被确定-凯发k8官网

洛杉矶盆地上百处沼气泄露点已被确定
文章来源:未知 文章作者:enread 发布时间:2016-02-26 04:32 字体: [ ] 
(单词翻译:双击或拖选)
hundreds of 1-emitting hot spots have been identified across the los angeles basin, including a "clean ports" truck refueling facility near the port of long beach, power plants, water treatment facilities, and cattle in chino, according to new findings by the university of california, irvine. 2 scientists conducted a mobile survey across los angeles, orange and riverside counties, and their results, published this week in the journal of geophysical research: atmospheres, identify the region's highest emitters. methane is the second-largest known contributor to global climate change, behind carbon dioxide.
 
the survey was done before the aliso 3 gas well leak temporarily displaced thousands from their porter 4 homes. the findings could be used by the southern california gas co. to meet orders by gov. jerry brown and the state air resources board to 5 the gas leak by removing as much of the fast-acting greenhouse gas from the air as was emitted from the aliso canyon site, the researchers said.
 
lead author francesca hopkins said the survey "identified numerous methane hot spots that could be targets for these mitigation activities."
 
the researchers drove a 6 equipped 7 van for hundreds of miles throughout the los angeles region, taking readings with instruments designed to measure methane, ethane, carbon monoxide and carbon dioxide. they observed heightened methane levels across the basin and 8 213 hot spots.
 
"our surveys demonstrate the prevalence of unwanted methane 9 across the los angeles urban landscape and show that two-thirds of the gas comes from fossil fuel origins," said hopkins, who began the work as a postdoctoral scholar at uci. "known sources of methane include cattle, 10 11, landfills and compressed natural gas fueling stations."


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1 t1eyx     
n.甲烷,沼气
参考例句:
  • the blast was caused by pockets of methane gas that ignited.爆炸是由数袋甲烷气体着火引起的。
  • methane may have extraterrestrial significance.甲烷具有星际意义。
2 6eayr     
adj.大气的,空气的;大气层的;大气所引起的
参考例句:
  • sea surface temperatures and atmospheric circulation are strongly coupled.海洋表面温度与大气环流是密切相关的。
  • clouds return radiant energy to the surface primarily via the atmospheric window.云主要通过大气窗区向地表辐射能量。
3 4tyya     
n.峡谷,溪谷
参考例句:
  • the grand canyon in the usa is 1900 metres deep.美国的大峡谷1900米深。
  • the canyon is famous for producing echoes.这个峡谷以回声而闻名。
4 dauzk     
n.大牧场,大农场
参考例句:
  • he went to work on a ranch.他去一个大农场干活。
  • the ranch is in the middle of a large plateau.该牧场位于一个辽阔高原的中部。
5 mizx8     
n.分支,补偿;v.抵消,补偿
参考例句:
  • their wage increases would be offset by higher prices.他们增加的工资会被物价上涨所抵消。
  • he put up his prices to offset the increased cost of materials.他提高了售价以补偿材料成本的增加。
6 hviwq     
adv.特定地;特殊地;明确地
参考例句:
  • they are specially packaged so that they stack easily.它们经过特别包装以便于堆放。
  • the machine was designed specially for demolishing old buildings.这种机器是专为拆毁旧楼房而设计的。
7 6tcyg     
n.(一只船或一架飞机运载的)货物
参考例句:
  • the ship has a cargo of about 200 ton.这条船大约有200吨的货物。
  • a lot of people discharged the cargo from a ship.许多人从船上卸下货物。
8 e23273e2459d3a2f113ef7cdb8d1c728     
准确地找出或描述( pinpoint的过去式和过去分词 ); 为…准确定位
参考例句:
  • his refusal to help simply pinpointed his cowardice. 他拒绝帮助正显示他的胆小。
  • computers pinpointed where the shells were coming from. 计算机确定了炮弹发射的位置。
9 1a87f8769eb755734e056efecb5e2da9     
排放物( emission的名词复数 ); 散发物(尤指气体)
参考例句:
  • most scientists accept that climate change is linked to carbon emissions. 大多数科学家都相信气候变化与排放的含碳气体有关。
  • dangerous emissions radiate from plutonium. 危险的辐射物从钚放散出来。
10 dg3x9     
adj.地质的
参考例句:
  • the red sea is a geologic continuation of the valley.红海就是一个峡谷在地质上的继续发展。
  • delineation of channels is the first step of geologic evaluation.勾划河道的轮廓是地质解译的第一步。
11 074f5ef8e0953325ce81f208b2e4cecb     
n.(液体)渗( seep的名词复数 );渗透;渗出;漏出v.(液体)渗( seep的第三人称单数 );渗透;渗出;漏出
参考例句:
  • water seeps through sand. 水渗入沙中。 来自《现代汉英综合大词典》
  • water seeps out of the wall. 水从墙里沁出。 来自《现代汉英综合大词典》
tag标签: climate methane basin
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