material damage caused by air pollution

... range of root damage severities (1–100% necrotic roots) by modulating the number of infested compartments The necrotic roots index was a pertinent descriptor of the visible damage caused by infection ... each compartment, fine and lateral root damage was assessed visually The taproot damage was assessed as follows; necrotic taproot length was estimated by adding the lengths of segments presenting ... situ [6] MATERIALS AND METHODS 2.1 Plant material and growth conditions Chestnut seeds (C sativa) collected in mature stands in Ille-et-Vilaine, Bretagne, France, were surface disinfected by immersing...

Ngày tải lên: 08/08/2014, 14:20

... from 16 July to 31 August 2003 by MOZAIC airliners over Frankfurt (Measurements of OZone, water vapour, carbon monoxide and nitrogen oxides by Airbus In-service airCraft, http://mozaic.aero obs-mip.fr/web/), ... Von Wrede, R., Hume, C., and Cook, T.: Measurement of ozone and water vapour by Airbus in-service aircraft: The MOZAIC airborne program, An overview, J Geophys Res., 103, 25 631–25 642, 1998 15915, ... initial morning rises in ozone during the episode over London were caused by the collapse of the inversion layer and entrainment of air from aloft in the nocturnal residual layer polluted on a regional...

Ngày tải lên: 17/02/2014, 10:20

... authorised provided the source is acknowledged Ambient Air Pollution by Polycyclic Aromatic Hydrocarbons (PAH) Position Paper July 27th 2001 Prepared by the Working Group On Polycyclic Aromatic Hydrocarbons ... should be taken into account • PAH reference material This is the uncertainty of a certified reference material taken from real air samples and determined by laboratory inter-comparison exercises ... 1996] iii Air Quality Guidelines for Europe: [WHO 2001] iv Report on Polycyclic Aromatic Hydrocarbons published by the UK Expert Panel on Air Quality Standards [EPAQS 1999] v Report by CONCAWE...

Ngày tải lên: 17/02/2014, 11:20

... indoor and ambient pollution or smoking, but they were conducted among a small number of children or occupationally exposed employees [9,10,19] Oxidative stress caused by air pollution may be implicated ... oxidative damaged DNA lesions in urine Mutat Res 2005, 574(1-2):58-66 19 Lu CY, Ma YC, Lin JM, Chuang CY, Sung FC: Oxidative DNA damage estimated by urinary 8-hydroxydeoxyguanosine and indoor air pollution ... effects of particulate air pollution Epidemiology 2010, 21:198-206 13 Park SK, O’Neill MS, Wright RO, Hu H, Vokonas PS, Sparrow D, Suh H, Schwartz J: HFE genotype, particulate air pollution, and heart...

Ngày tải lên: 17/02/2014, 22:20

... help meet air quality standards (US EPA, 2004) So even though the percent air quality improvement from pollution removal by trees may be relatively small, the total effect of trees on air pollution ... (2006) 115-123 121 Table Estimated percent air quality improvement in selected US cities due to air pollution removal by urban trees City %tree cover % air quality improvement Atlanta, GA Boston, ... pollution removal by all urban trees in the United States, national pollution concentration data (all EPA monitors) were combined with standardized local or regional pollution removal rates Pollution...

Ngày tải lên: 17/02/2014, 22:20

... Screenshot of Eye on Earth/AirWatch showing local level air quality information Air pollution by ozone across Europe during summer 2009 European Environment Agency Air pollution by ozone across Europe ... percentile and the maximum value 14 Air pollution by ozone across Europe during summer 2009 Ozone air pollution in summer 2009 2.3 Geographical distribution of ozone air pollution The spatial distribution ... 2007a Air pollution by ozone in Europe in summer 2006 EEA Technical report 5/2007 EEA, Copenhagen EEA, 2007b Air pollution in Europe 1990–2004 EEA Report 2/2007 EEA, Copenhagen EEA, 2008 Air pollution...

Ngày tải lên: 06/03/2014, 16:20

... (especially for asthma, which may reflect variations in definitions and condition by age), but supported by studies of outdoor air pollution, smoking, and laboratory animals Adult Adverse pregnancy outcomes ... but some support from outdoor air pollution and passive-smoking studies Several studies from developed countries have shown increased risk for exposure to outdoor air pollution at much lower levels ... demand, and thereby providing market conditions for lower prices and more consistent quality Air quality standards Although some developing countries have air quality standards for urban air, none have...

Ngày tải lên: 06/03/2014, 19:20

... velocities for all air pollutants were highest in May and lowest in February The modeled monthly uptake of air pollutants by green roofs is shown in Fig The total air pollution removal by 19.8 of green ... Stevens, J.C., 2006 Air pollution removal by urban trees and shrubs in the United States Urban Forestry & Urban Greening 4, 115–123 Nowak, D.J., 1994 Air pollution removal by Chicago’s urban forest ... clean air that is safe for everyone to breathe This study evaluated one such innovative approach: using green roofs for air pollution control By using a big-leaf dry deposition model, the air pollutants...

Ngày tải lên: 06/03/2014, 19:20

... la pollution de l air ambiant par les HAP Séance du 17 Septembre 1997 [4] Fugas M Legislation on protection of air quality in Croatia WHO Newsletter, no 19, 1997 WHO Collaborating Centre for Air ... polycyclic aromatic hydrocarbons in urban air: a study in a medium traffic area in Rome, 1993-1998 Atmos Environ 33: 3739-3750 MENICHINI, E 1992 Urban air pollution by polycyclic aromatic hydrocarbons: ... carried out by GC/MS ISO/TC 146/SC 3/WG 17: Air quality – Determination of particle-phase polycyclic aromatic hydrocarbons by high performance liquid chromatographic analysis” [ISO (1999) Air quality]...

Ngày tải lên: 15/03/2014, 16:20

... followed by biogenic oxidation to organic PM But, in populated areas of California, biogenic emissions are relatively low Some PM2.5 decreases were also offset by surface PM2.5 increases caused by ... temperature decreased PM2.5 by increasing vapor pressures thus PM evaporation and by enhancing precipitation in some locations Some PM2.5 decreases with higher temperature were offset by biogenic organic ... emissions The CO2 increases in California increased the PW air temperature by about 0.0063 K, more than it changed the domain-averaged air temperature (+0.00046) (Figure 2c) Thus, CO2 domes had...

Ngày tải lên: 15/03/2014, 20:20

... might be caused or exacerbated by air pollution (i.e respiratory diseases not caused by air pollution can be excluded) However, whilst this information exists at a national level, and by health ... effects of air pollution; and section the economic costs of air pollution in terms of health Section outlines the data sources, the approach adopted to estimate pollution absorption by trees, ... in time between air pollution and mortality and morbidity That is, the function looks at the immediate effect of air pollution, and underestimates the long-term impact of air pollution Source:...

Ngày tải lên: 23/03/2014, 02:20

... November 2005 (i.e 22 days after the deadline set by the directive) Ozone air pollution in summer 2005 Ozone air pollution in summer 2005 Air pollution by ozone during summer 2005 was slightly higher ... Source: Map produced by the European Topic Centre on Air and Climate Change, CHMI Air pollution by ozone in Europe in summer 2005 25 European Environment Agency Air pollution by ozone in Europe ... 20° 1000 Source: Map produced by the European Topic Centre on Air and Climate Change, CHMI 18 Air pollution by ozone in Europe in summer 2005 1500 Km 30° Ozone air pollution in summer 2005 2.4...

Ngày tải lên: 29/03/2014, 14:20

... Virginia creeper, willow (weeping), wheat, and zinnia Chlorine Injury caused by chlorine (Cl2) is somewhat similar to that caused by sulfur dioxide and fluorides, in that it is marginal and interveinal ... nitrate, may also be present in urban air and may produce symptoms that are indistinguishable from those caused by peroxyacetyl nitrate Concentration Typical damage to susceptible plants occurs ... Fluoride-contaminated forage that is eaten by cattle or sheep may cause fluorosis Fluorides are produced by glass, aluminum, pottery, brick, and ceramic industries and by refineries, metal ore smelters,...

Ngày tải lên: 29/03/2014, 18:20

... degree of airways hyperresponsiveness following air pollution exposures Asthmatics as a group represent a potential susceptible population that would be more significantly affected by air pollution ... investigate the role of arginase in the exacerbation of airways responsiveness induced by air pollution exposure, we utilized two murine models of allergic airways inflammation: the subacute (16-day) and ... the role of oxidative stress-responsive genes and air pollution exposures in asthma [12,13] However, the mechanism(s) linking exposure to air pollution and asthma exacerbation remains unclear...

Ngày tải lên: 12/08/2014, 13:22

... Int J Med Sci 2011, copy owing to incomplete bowel preparation The bleeding was controlled by #3-0 Vycryl intracorporeal suture, and the invagination of the diverticulum was performed laparoscopically ... using diverticulectomy We reported a case of colonic diverticulum that was successfully treated by laparoscopic suture and invagination of the diverticulum Our case highlights the occurrence of...

Ngày tải lên: 25/10/2012, 10:51

... thuyết: Air pollution Environmental management (Ô nhiễm không khí) (Sự quản lý môi trường) “Advantage of late comer” (Lợi người sau) Môn Phương pháp nghiên cứu Khoa học Nhóm * Mô hình thực tế: Air pollution ... thuyết môn học này, nhóm tiến hành phân tích báo khoa học “The “advantage of latecomer” in abating airpollution: the East Asian experience” Trong phạm vi nghiên cứu đề tài này, chúng em trả lởi câu ... Environmental management (Ô nhiễm không khí) (Sự quản lý môi trường) Kinh nghiệm Nhật Bản: - EKC and Air pollution - Khởi xướng quyền Qui chế sách kiểm soát môi trường Khía cạnh kỹ thuật xử lý vấn đề...

Ngày tải lên: 13/04/2013, 21:59

... can pollute the air T / F Industry is the only source of air pollution in cities T / F B QUESTIONS What / clean air / provide / us? - What does clean air provide us with? - (Clean air provides us ... What / some examples / air pollution/ nature? - What are some examples of air pollution in nature? - They are dust storms, volcanic eruptions, forest fires caused by lightning, pollen and marsh ... chain of islands A caused A forest fireforest fireby lightning + pollen ['pKlEn] (n): phấn hoa + marsh gas [mA:F éỉs] (n): khí đầm lầy (khí mêtan CH4) A large amount of air pollution in cities...

Ngày tải lên: 25/09/2013, 11:10

Ngày tải lên: 24/10/2013, 15:20

... ambiguity • Indicate the main ambiguities caused by ellipsis and substitution • Give some recommendations and suggestions for avoiding ambiguity caused by ellipsis and substitution • Give some ... usually cause ambiguity?  What are the main types of ambiguity caused by ellipsis and substitution?  How to avoid ambiguity caused by ellipsis and substitution? Scope of the Study This paper deals ... of ambiguity caused by ellipsis and substitution through exercises  Chapter 3: Findings and discussion This chapter presents some major findings about ambiguity which is caused by ellipsis and...

Ngày tải lên: 14/12/2013, 00:41

... refrigeration and vehicle air- conditioning systems to minimize CFC emissions by control of system leaks Title VI of the 1990 Clean Air Act Amendments1 now requires that motor vehicle air- conditioning ... appreciable nitrogen) can emit NOx when combusted in nitrogen-containing air Major stationary sources of combustion-generated air pollution include steam electric generating stations, metal processing ... two phases The packing material is often plastic, but may be other materials as well The primary Table 65.2 Annual Combustion-Generated Emissions of Selected Pollutants by Stationary Source Category3...

Ngày tải lên: 17/12/2013, 14:15