油库安全三字经

攀有火种,暂收缴.带手机,要关掉。要害部,最重要,出入人,登记好。交接班,要做好,各项事.记录到、守纪律,不违章,图省事,责难逃。摩托车,自行车,定地点,要放好。付油区.要做到,提油车,检查好.车进库,戴火帽、虽俪烦,不能少。收发油,操作好,按程序,必做勃。有静电、着不着,导静电.最可靠.化绷浸_,撇丁鞋,进汕库.要换掉,静电线,要传导,」妾卸油,要夹牢。搞维修,为安全,用电器,要防爆。要动火.开“火票,’,需批准,最重要,有措施,有监护.各环节.不减少。灭火器,保完好,灭火液,不失效。消防队,训练好,俏防泵,保养好,几砂钟,发动着,有火警,诅速到.…     

煤添加高岭土燃烧控制有害微量元素的排放

通过在一维煤粉燃烧炉上进行无烟煤添加高岭土吸附剂的燃烧实验,研究了无烟煤及其燃烧产物中18种环境有害微量元素的含量和分布;计算了高岭土在不同燃烧工况条件下对每种环境有害微量元素的吸附率.结果表明,高岭土对环境有害微量元素Cd, Pb, Sb, Sn, Ba, Co, Be, Cr, Ni, Mo, Tl, V, U, Mn, Th具有不同的吸附作用,吸附率为11.6%～500%;吸附效率与元素种类、燃烧工况等因素有关,环境有害微量元素Cd, Pb, Zn, Sb, Ba, Co, Be, Cr, Ni, Mo, Tl, V, U, Mn, Th的吸附能力,分级燃烧比不分级燃烧吸附效果更好,总吸附率差为8.4%～481%.     

Fine particle trace elements at a mountain site in southern China:Source identification,transport,and health risks

Trace elements in atmospheric particulate matter play a significant role in air quality, human health, and biogeochemical cycles. In this study, the trace elements(Ca, Al, K, Fe, Na,Mg, Zn, Pb, Mn, Ti, Cu, Cr, Sr, Ni) in PM2.5samples collected at the summit of Mt. Lushan were analyzed to quantify their abundance, source, transport, and health risks. During the whole sampling period, the major trace elements was Ca, Al, and K. While the trace metals with the lowest concentrations were Sr, Ni, Rb,...     

乾隆的风扇

过去的房子采光不好,避暑一流,民宅也好,官署也罢,尤其皇帝寝宫,都是很节能的。第一,墙体厚,晒不透,冬天暖,夏天凉;第二,屋顶大,窗户小,既挡寒,又遮阴;第三,材料多用土木,不用水泥,比热很高,温度难变,不会太热,也不会太冷。因为以上缘故,古人过夏天是不用开空调的。     

Hylocomium splendens (Hedw.) B.S.G. and Pleurozium schreberi (Brid.) Mitt. as trace element bioindicators: Statistical comparison of bioaccumulative properties

The principal objective of this study was to compare bioaccumulative properties of two terrestrial moss species Hylocomium splendens and Pleurozium schreberi from the Kielce area (south-central Poland), using various statistical techniques. Forty-six moss samples from 23 sampling sites located within the city limits were analyzed for 33 trace elements. The results indicated that 17 elements (Ba, Ce, Co, Cu, Eu, Fe, Gd, Hg, La, Mo, Nd, Ni, Pb, Pr, Sm, V, Y) dominated in H. splendens, whereas only three elements (Mn, Sr, Zn) occurred in excessive amounts in P. schreberi. No differences in the distribution pattern of Dy, Er, Ho, Sn, Tb, Th and Yb were observed. The element concentration ratio (PI/Hy) varied from 0.50 to 1.19. For 14 elements (Ce, Co, Cu, Fe, Gd, Hg, La, Mo, Nd, Ni, Pb, Sm, Th, V), PI/Hy < 1; for 4 elements (Cd, Mn, Sr, Zn), PI/Hy > 1; for 7 elements (Ba, Dy, Er, Eu, Pr, Y, Yb), PI/Hy = equalled 1. Czekanowski’s method showed similarities in rare earth element concentrations for both moss species. The cluster analysis exhibited three significant clusters at D link /D max × 100 < 50 for both moss species. Strong positive Spearman correlations between both moss species were recorded for the following pairs:Ba-Ba, Co-Co, Er-Er, Eu-Eu, Gd Gd, Mn-Mn, Ni-Ni, Pb-Pb, Pr-Pr, Sm-Sm, Th-Th, Y-Y, and Yb-Yb. Nonparametric tests (Sign test, Wilcoxon tests) showed statistically significant differences only for Cd, Ce, Co, Cu, Hg, Mo, Ni, Pb and Sr. The scanning electron microscope study of H. splendens and P. schreberi revealed a different morphology of these species with no injuries.     

电石渣堆放场重金属生态风险评价与成因分析

为了解电石渣堆放场重金属潜在生态风险和成因,选择天津市某电石渣堆放场为研究对象,通过现场采集电石渣样品和土壤样品,利用地累积指数和潜在生态风险评价方法对土壤重金属Cr,Ni,Cu,Zn,Cd,Pb,As,Hg含量进行分析.结果表明,场地内Zn,Cu,Cr平均值与天津市土壤背景值十分接近,地累积指数分布在-1.60~-0.10之间,不存在重金属污染现象;Ni,Pb,As地累积指数最大值小于1.00,存在个别点位轻微污染,Cd最大地累积指数为1.20,存在轻度污染现象,Hg地累积指数最大值为4.20,属于“重度污染”.Cr,Ni,Cu,Zn,Pb,As潜在生态风险低,经过因子分析,主要反映了成土母质对土壤重金属含量的影响;Cd,Hg局部位置具有较高~极高潜在生态风险,是场地内重点关注的潜在污染源,主要受电石渣,煤渣堆放对土壤重金属的淋滤作用和化学抑制作用影响.     

入秋注意保健

入秋之后,早晚凉爽,气候多变,正是各种疫病的高发期。预防各种传染性疾病是秋季保健的第一要务,要注意个人卫生,养成良好的卫生习惯,增强保健意识。其次,是要注意饮食卫生。经过夏天的消耗,人体的消化功能下降,胃肠道抗病能力减弱,易患腹泻和肠胃炎,稍有不慎,就会染疾病而损伤健康。秋天气候干燥,要多吃水果和蔬菜,橙子、柠檬、乌梅能清热退火,是极佳的选择。饮食以清淡为主,“早餐”一碗粥,晚餐一碗汤,大鱼大肉等容易生火的食物尽量少吃。再者,在养生方面,要注意保暖,不要贪凉,夏季时,不少人习惯于敞开门窗睡觉,入秋后昼夜温差大,夜晚风凉,…     

环保资金项目绩效管理主要思路及做法

为切实加强对中央和省级环保专项资金项目的管理,科学提炼项目,促进建设进度,提高资金使用效率,扎实推进环境改善和污染减排,近年来,山东省根据环保部要求,结合自身实际,按照"注重项目统筹,规范申报程序,严格审核审批,强化跟踪管理,做好绩效评价,确保发挥效益"的总体思路,大胆探索,逐步完善,采取一系列措施,积极推动和加强了环保资金项目绩效管理工作.     

回收利用事业是生产发展的产物及其在五十年代的经营活动

1949年全国解放后,蒋家王朝留下来的是一个支离破碎的烂摊子,民生凋蔽,百业待兴,国外是帝国主义的军事威胁和经济封锁,国内是兵匪燹乱,部分地区连年灾荒,农业欠收,可谓是雪上加霜,人民生活极度困难。在这种形势下,党和政府为了休养生息,恢复生产,发展经济,富国强兵,在全国范围内,依靠人民群众,开展生产自救,共度难关。     

优化阅读方法 提高阅读能力

在语文教学中建构阅读课堂,加强阅读情感体悟,萌生良好阅读语感,积累丰富阅读信息,探究高效研读成果,获得有益的认知体验,滋养内心世界,熏陶美好情操,形成个性文化。眼下,阅读是学生语文学习的一个大难题,急需语文教师建构语文阅读高效课堂,创设语文情境,优化阅读方法,在阅读中,训练学生思维和想象力,丰富情感,增长智慧,使他们爱阅读,会学习,提升能力。     

Distribution characteristics and indicator significance of Dechloranes in multi-matrices at Ny-Ålesund in the Arctic

In recent years, Dechloranes have beenwidely detected in the environment around the world. However, understanding and knowledge of Dechloranes in remote regions, such as the Arctic, remain lacking. Therefore, the concentrations of 5 Dechloranes in surface seawater, sediment, soil, moss, and dung collected from Ny-Ålesund in the Arctic were measured with the concentrations 93 pg/L, 342, 325, 1.4, and 258 pg/g, respectively, which were much lower than those in Asian and European regions. The mean ratios of anti-Dechlorane Plus (DP) to total DP (f_anti) in seawater, sediment, soil, moss, dung, and atmospheric samples were 0.36, 0.21, 0.18, 0.27, 0.66, and 0.43, respectively. Results suggested that the main source of DP in seawater, sediment, soil, andmosswas long-range atmospheric transport. However, the ratio identified in dung was different, for which the migration behavior of the organism is probably themain source of DP.     

莲花湖浮游植物群落组成及多样性研究

莲花湖浮游植物种类很多,组成复杂,经初步鉴定,2014年共发现浮游植物221个分类单位,分别隶属于8门,11纲,24目,43科,96属,221种;2015年共发现浮游植物224个分类单位,分别隶属于8门,11纲,23目,39科,98属,224种。对莲花湖浮游植物多样性分析显示以标准清洁水平为主。     

Restoration potential of pioneer plants growing on lead-zinc mine tailings in Lanping, southwest China

This study focused on the restoration potential of ten pioneer plants (Artemisia roxburghiana, Artemisia tangutica, Carex inanis, Cyperaceae hebecarpus, Plantago depresa, Cynoglossum lanceolatum, Potentilla saundesiana, Coriaria sinica, Oxyria sinensis, and Miscanthus nepalensis) during the early phase of Pb-Zn mine tailings phytostabilization, in Lanping, China. The concentrations of heavy metals (Pb, Zn, and Cu) and soil fertility (the available N, P, K, and organic matter) in the rhizosphere of these spe...     

丰县城区交通噪声调查与初步评价

丰县位于江苏省西北边缘,地处苏、鲁豫、皖接壤地区,历史悠久,文化灿烂。陆路交通发达。主要干线有:丰徐线,丰黄线,丰砀线,丰单线,丰鱼线,丰沛线等,各条公路均是纵横相通,运输十分繁忙。据统计,丰县有小型汽车400余辆,大型汽车800辆,手扶拖拉机,小四轮拖拉机,大拖拉机与摩托400余辆,另外还有大量过境的外省市县各种车辆,路上车流量更大。     

Sources appointment and health risks of PM2.5-bound trace elements in a coastal city of southeastern China

To gain a comprehensive understanding of sources and health risks of trace elements in an area of China with high population densities and low PM_2.5concentrations,15 trace elements (Al,K,Ca,Ti,V,Cr,Mn,Fe,Ni,Cu,Zn,As,Sn,Ba,Pb) in PM_2.5were monitored from December 2020 to November 2021 in a representative city,Xiamen.The concentrations of trace elements in Xiamen displayed an obvious seasonal variation and were dominated by K,Fe,Al,Ca and Zn.Based on Positive Matrix Factoriza...     

幸名苏武山方高

正苏武山是一座山,因为一个人,而名传千古,独冠华夏。出民勤县城向南,再折而向东,路面平平整整,旁有树木遮蔽。谈笑间,便到了山脚。这山,山石黛青,微微突起,和巍巍昆仑、高高珠峰、煌煌五岳相比,草非奇草,树非名种,石不俊秀,势非奇绝,初次见面,几乎都不好意思说这是一座山,还是名山!一次热汗淋漓的攀登,拖曳着在山外羁绊终日渐疲倦的肉体,逶     

生态泰达之夜晚会在京召开

天津滨海新区开发区感谢长期以来国际国内各组织机构、新闻媒体等对于开发区绿色发展的鼎力支持与关注,2013年1月16日,生态泰达之夜联谊晚会在北京金茂威斯汀酒店举行。欧盟驻华使团,美国,日本,法国,奥地利,丹麦,芬兰,挪威等十余家使馆,联合国工业开发署,世界自然基金会,世界银行国际金融公司,各国商会,跨国公司的高级代表与来自国家发改委,商务部,环保部,工信部相关领导,及天津市发改委,滨海新区,天津开发区,保税区,高新区,临港经济区,生态城和子牙循环经济园区各主要经济区节能环保相关主管领导,     

建网十周年庆祝活动撷英

时维五月,序属孟夏,空气清新,气候宜人,可谓良辰;匡庐胜境,翠岭飘逸,云雾山中,仙人居所,可谓美景;情报网群贤毕至,少长咸集,共庆建网十载,回顾往昔,展望未来,可谓盛会。 故尔,交通科学研究院副院长张定邦同志在开幕词中用“良辰、美景、盛会”赞誉此会,使大会凭添雅趣,众代表无不欢欣。     

读《人与环境》有感

人与环境,环境在先,自然为本,人类本是自然进程演变造化的产物.自有人类以来,人与环境相互依存,历经千百万年时空沧桑,共生共荣,和谐如初,俨然一体.及至工业革命,祸端肇起,人类以为从此掌握依自我意愿改造自然之权力及能力,妄自尊大,忘乎所以,超越环境容量,耗竭再生能力,竭泽而渔,究其原因,无不为了当今现世一己之利.     

荷塘

在老家老屋背后有口荷塘,原是鱼塘,后改作了荷塘.改造的过程极简单,冬天里在抽干水的池塘稀泥里,横七竖八地播些藕种,既不消施肥也不用打药,放上一塘水,来年开春,水面上就露出荷的嫩尖芽儿,淡黄色,星星点点,散布整个池塘.几天后,嫩尖芽儿由黄而绿,渐变成荷叶的雏形,细小,卷曲,不几天,荷叶整个地舒展开,巴掌大小,浮于水面,荷塘四周就弥漫着荷的清香了.