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A review of the technology and applications of methods for evaluating the transport of air pollutants SCIE
期刊论文 | 2023 , 123 , 341-349 | JOURNAL OF ENVIRONMENTAL SCIENCES
WoS CC Cited Count: 9
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Abstract :

A variety of methods based on air quality models, including tracer methods, the brute-force method (BFM), decoupled direct method (DDM), high-order decoupled direct method (HDDM), response surface models (RSMs) and so on forth, have been widely used to study the transport of air pollutants. These methods have good applicability for the transport of air pollutants with simple formation mechanisms. However, differences in research conclusions on secondary pollutants with obvious nonlinear characteristics have been reported. For example, the tracer method is suitable for the study of simplified scenarios, while HDDM and RSMs are more suitable for the study for nonlinear pollutants. Multiple observation techniques, including conventional air pollutant observation, lidar observation, air sounding balloons, vehicle-mounted and ship-borne technology, aerial surveys, and remote sensing observations, have been utilized to investigate air pollutant transport characteristics with time resolution as high as 1 sec. In addition, based on a multi-regional input-output model combined with emission inventories, the transfer of air pollutant emissions can be evaluated and applied to study the air pollutant transport characteristics. Observational technologies have advantages in temporal resolution and accuracy, while modeling technologies are more flexible in spatial resolution and research plan setting. In order to accurately quantify the transport characteristics of pollutants, it is necessary to develop a research method for interactive verification of observation and simulation. Quantitative evaluation of the transport of air pollutants from different angles can provide a scientific basis for regional joint prevention and control. (c) 2022 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.

Keyword :

Transport flux Transport flux Air pollutant transport Air pollutant transport Simulation technology Simulation technology Observation technology Observation technology Transport matrix Transport matrix

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GB/T 7714 Wang, Xiaoqi , Cheng, Shuiyuan , Zhou, Ying et al. A review of the technology and applications of methods for evaluating the transport of air pollutants [J]. | JOURNAL OF ENVIRONMENTAL SCIENCES , 2023 , 123 : 341-349 .
MLA Wang, Xiaoqi et al. "A review of the technology and applications of methods for evaluating the transport of air pollutants" . | JOURNAL OF ENVIRONMENTAL SCIENCES 123 (2023) : 341-349 .
APA Wang, Xiaoqi , Cheng, Shuiyuan , Zhou, Ying , Zhang, Hanyu , Guan, Panbo , Zhang, Zhida et al. A review of the technology and applications of methods for evaluating the transport of air pollutants . | JOURNAL OF ENVIRONMENTAL SCIENCES , 2023 , 123 , 341-349 .
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基于CdSe@CdS/壳聚糖/gC_3N_4复合物的卡那霉素电化学发光适配体传感器
期刊论文 | 2023 , 42 (03) , 305-311 | 分析试验室
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Abstract :

利用核壳型的CdSe@CdS量子点作为发光物质,并用壳聚糖(CS)、类石墨烯氮化碳(gC_3N_4)与CdSe@CdS量子点合成了CdSe@CdS/CS/gC_3N_4复合物,将该复合物修饰至玻碳电极(GCE)表面,将适配体(Apt)的互补DNA链(cDNA)通过化学反应连接到量子点上,Apt与cDNA发生杂交反应而被修饰至电极表面。将辣根过氧化物酶(HRP)固定到该修饰电极表面,构建了检测卡那霉素(Kana)的电化学发光(ECL)适配体传感器。通过生物催化沉淀(BCP)方法实现Kana的检测,溶液中无Kana时,在H_2O_2的存在下,修饰在电极上的HRP可以催化氧化4-氯-1-萘酚(4-CN),在电极表面产生不导电的苯并-4-氯己二烯酮沉淀,导致电化学发光信号明显降低。溶液中存在Kana时,Kana会与Apt特异性结合,部分dsDNA解旋,导致部分HRP从电极表面脱落,BCP反应减弱,导致ECL信号增强,实现目标物质的特异性检测。计算适配体传感器在Kana溶液中的ECL强度(I)与传感器在空白溶液中的ECL强度(I_0)的差值ΔI (I-I_0),并以此作为响应信号。结果显示,ΔI与Kana浓度的对数值在1.0×10~(-8)~1.0×10~(-4) g/L范围呈良好的线性关系,检出限为5 ng/L。该传感器在实际样品测定中具有较好的应用前景。

Keyword :

电化学发光 电化学发光 卡那霉素 卡那霉素 量子点 量子点 适配体 适配体 生物催化沉淀 生物催化沉淀

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GB/T 7714 高会莲 , 康天放 , 鲁理平 et al. 基于CdSe@CdS/壳聚糖/gC_3N_4复合物的卡那霉素电化学发光适配体传感器 [J]. | 分析试验室 , 2023 , 42 (03) : 305-311 .
MLA 高会莲 et al. "基于CdSe@CdS/壳聚糖/gC_3N_4复合物的卡那霉素电化学发光适配体传感器" . | 分析试验室 42 . 03 (2023) : 305-311 .
APA 高会莲 , 康天放 , 鲁理平 , 程水源 . 基于CdSe@CdS/壳聚糖/gC_3N_4复合物的卡那霉素电化学发光适配体传感器 . | 分析试验室 , 2023 , 42 (03) , 305-311 .
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分子印迹电化学发光传感器的制备及其对卡那霉素的测定应用
期刊论文 | 2023 , 59 (3) , 249-256 | 理化检验(化学分册)
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Abstract :

制备了硫化镉量子点-壳聚糖(CdS-CS)复合物修饰的玻碳电极(GCE),记作CdS-CS/GCE.以卡那霉素为模板分子,3-氨基苯硼酸(APBA)为功能单体,采用循环伏安法在CdS-CS/GCE表面电聚合得到了分子印迹聚合物(MIP)膜,所制备的传感器记作MIP/CdS-CS/GCE.卡那霉素可与传感器表面的MIP特异性结合,占据印迹孔穴,阻断共反应剂K2 S2 O8扩散到电极表面的通路,使电化学发光强度减弱.以传感器在空白溶液中的电化学发光强度(I0)与传感器在卡那霉素标准溶液中的电化学发光强度(I)的差值ΔI(ΔI=I0-I)作为响应信号,在优化的试验条件下,响应信号ΔI与卡那霉素浓度的对数值在1.0×10-11~1.0×10-7 mol·L-1内呈线性关系,相关系数为0.9990,检出限(3S/N)为5×10-12 mol·L-1.按标准加入法对实际样品进行回收试验,回收率为99.9%~103%,测定值的相对标准偏差(n=5)为2.5%~4.3%.

Keyword :

分子印迹聚合物 分子印迹聚合物 传感器 传感器 卡那霉素 卡那霉素 电化学发光法 电化学发光法 CdS-CS复合物 CdS-CS复合物

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GB/T 7714 孙晨阳 , 康天放 , 鲁理平 et al. 分子印迹电化学发光传感器的制备及其对卡那霉素的测定应用 [J]. | 理化检验(化学分册) , 2023 , 59 (3) : 249-256 .
MLA 孙晨阳 et al. "分子印迹电化学发光传感器的制备及其对卡那霉素的测定应用" . | 理化检验(化学分册) 59 . 3 (2023) : 249-256 .
APA 孙晨阳 , 康天放 , 鲁理平 , 程水源 . 分子印迹电化学发光传感器的制备及其对卡那霉素的测定应用 . | 理化检验(化学分册) , 2023 , 59 (3) , 249-256 .
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The Independent Impacts of PM2.5 Dropping on the Physical and Chemical Properties of Atmosphere over North China Plain in Summer during 2015-2019 SCIE SSCI
期刊论文 | 2022 , 14 (7) | SUSTAINABILITY
WoS CC Cited Count: 1
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Great changes occurred in the physical and chemical properties of the atmosphere in the North China Plain (NCP) in summer caused by PM2.5 dropping from 58 mu g/m(3) in 2015 to 36.0 mu g/m(3) in 2019. In this study, we first applied the WRF-Chem model to quantify the impact of PM2.5 reduction on shortwave radiation reaching the ground (SWDOWN), planetary boundary layer height (PBLH), and the surface concentration of air pollutants (represented by CO). Simulation results obtained an increase of 15.0% in daytime SWDOWN and 9.9% in daytime PBLH, and a decrease of -5.0% in daytime CO concentration. These changes were induced by the varied PM2.5 levels. Moreover, the variation in SWDOWN further led to a rise in the NO2 photolysis rate (JNO(2)) over this region, by 1.82 x 10(-4)similar to 1.91 x 10(-4) s(-1) per year. Afterwards, we employed MCM chemical box model to explore how the JNO(2) increase and the precursor decrease (CO, VOCs, and NOx) influenced O-3 and HO2 radicals. The results revealed that the photolysis rate U) increase would individually cause a change on daytime surface O-3, OH, and HO2 radicals by +9.0%, +18.9%, and +23.7%; the corresponding change induced by the precursor decrease was -2.5%, +1.9%, and -2.3%. At the same time, the integrated impacts of the change in J and precursors cause an increase of +6.3%, +21.1%, and +20.9% for daytime surface O-3, OH, and HO2. Generally, the atmospheric oxidation capacity significantly enhanced during summer in NCP due to the PM2.5 dropping in recent years. This research can help understand atmosphere changes caused by PM2.5 reduction comprehensively.

Keyword :

chemical box model chemical box model atmospheric oxidation capacity atmospheric oxidation capacity WRF-Chem WRF-Chem photolysis rates photolysis rates

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GB/T 7714 Ou, Shengju , Wei, Wei , Cai, Bin et al. The Independent Impacts of PM2.5 Dropping on the Physical and Chemical Properties of Atmosphere over North China Plain in Summer during 2015-2019 [J]. | SUSTAINABILITY , 2022 , 14 (7) .
MLA Ou, Shengju et al. "The Independent Impacts of PM2.5 Dropping on the Physical and Chemical Properties of Atmosphere over North China Plain in Summer during 2015-2019" . | SUSTAINABILITY 14 . 7 (2022) .
APA Ou, Shengju , Wei, Wei , Cai, Bin , Chen, Saisai , Guan, Panbo , Cheng, Shuiyuan . The Independent Impacts of PM2.5 Dropping on the Physical and Chemical Properties of Atmosphere over North China Plain in Summer during 2015-2019 . | SUSTAINABILITY , 2022 , 14 (7) .
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La~(3+)掺杂CdS 量子点的卡那霉素电化学发光适配体传感器研究
期刊论文 | 2022 , 34 (03) , 525-532 | 化学研究与应用
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Abstract :

本文合成了La~(3+)掺杂的CdS量子点(CdS:La QDs),以其作为发光材料。将量子点吸附于玻碳电极(GCE)表面。采用卡那霉素(Kana)的适配体(apt)及其互补链(cDNA)制备传感器,使apt与cDNA在电极表面杂交形成双链DNA(dsDNA),然后用氯化血红素(hemin)溶液孵育该修饰电极,使hemin嵌入至dsDNA中,制得Kana电化学发光适配体传感器,记作hemin-dsDNA/CdS:La/GCE。建立了简便、灵敏的检测Kana的电化学发光(ECL)方法,当不存在Kana时,电极表面的hemin作为模拟过氧化物酶会催化溶液中的H_2O_2还原为OH~-,使作为量子点...

Keyword :

La~(3+)离子 La~(3+)离子 CdS量子点 CdS量子点 适配体传感器 适配体传感器 电化学发光 电化学发光 卡那霉素 卡那霉素

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GB/T 7714 高会莲 , 康天放 , 鲁理平 et al. La~(3+)掺杂CdS 量子点的卡那霉素电化学发光适配体传感器研究 [J]. | 化学研究与应用 , 2022 , 34 (03) : 525-532 .
MLA 高会莲 et al. "La~(3+)掺杂CdS 量子点的卡那霉素电化学发光适配体传感器研究" . | 化学研究与应用 34 . 03 (2022) : 525-532 .
APA 高会莲 , 康天放 , 鲁理平 , 程水源 . La~(3+)掺杂CdS 量子点的卡那霉素电化学发光适配体传感器研究 . | 化学研究与应用 , 2022 , 34 (03) , 525-532 .
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Agricultural ammonia emissions and its impact on PM2.5 concentrations in the Beijing-Tianjin-Hebei region from 2000 to 2018 SCIE
期刊论文 | 2021 , 291 | ENVIRONMENTAL POLLUTION
WoS CC Cited Count: 34
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Ammonia (NH3) discharged from agricultural activities to the atmosphere plays a crucial role in the formation of secondary inorganic aerosols. This study analyzed the temporal-spatial development of agricultural NH3 emissions from 2000 to 2018 in the Beijing-Tianjin-Hebei (BTH) region and assessed the effects of reducing PM2.5 by removing agricultural NH3 using an air quality model. The results showed that the interannual agricultural NH3 emissions in the BTH region exhibited a stairs trend from 2000 to 2018, with an average of 971.63 Gg. In particular, agricultural NH3 emissions in the BTH region reached a maximum in summer when the temperature was high and were more concentrated in the southern plains compared to the northern areas. Under the reduction scenario (RS), the agricultural NH3 emissions in the BTH region in 2015, 2016, 2017, and 2018 were reduced by 2.95%, 4.10%, 18.75%, and 10.21%, resulting in a reduction of 0.5%, 0.5%, 2.5%, and 1.2% of annual mean PM2.5 concentration, respectively, compared with the baseline scenario (BS). Furthermore, agricultural NH3 emissions contributed 12.6, 12.1, 11.9, and 11.3 mu g m(-3) to PM2.5 concentrations in 2015, 2016, 2017, and 2018 under the zero-emission scenario (ZS), respectively. However, the contribution rates exhibited a slightly increasing trend from 20.5% in 2015 to 24.6% in 2018. These findings could provide a new understanding of agricultural NH3 emission trends and their impacts on PM2.5 concentration based on actual NH3 mitigation ratios in recent years, thereby guiding the formulation of future control strategies.

Keyword :

PM2.5 PM2.5 Ammonia Ammonia Reduction effects Reduction effects Emission trends Emission trends

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GB/T 7714 Cheng, Long , Ye, Zhilan , Cheng, Shuiyuan et al. Agricultural ammonia emissions and its impact on PM2.5 concentrations in the Beijing-Tianjin-Hebei region from 2000 to 2018 [J]. | ENVIRONMENTAL POLLUTION , 2021 , 291 .
MLA Cheng, Long et al. "Agricultural ammonia emissions and its impact on PM2.5 concentrations in the Beijing-Tianjin-Hebei region from 2000 to 2018" . | ENVIRONMENTAL POLLUTION 291 (2021) .
APA Cheng, Long , Ye, Zhilan , Cheng, Shuiyuan , Guo, Xiurui . Agricultural ammonia emissions and its impact on PM2.5 concentrations in the Beijing-Tianjin-Hebei region from 2000 to 2018 . | ENVIRONMENTAL POLLUTION , 2021 , 291 .
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Key factors influencing the formation of sulfate aerosol on the surface of mineral aerosols: Insights from laboratory simulations and ACSM measurements SCIE
期刊论文 | 2021 , 253 | ATMOSPHERIC ENVIRONMENT
WoS CC Cited Count: 8
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A significant technique of combining simulation experiments with a long-term real-time field measurement was first deployed to explore impacts of various environmental factors on formations of sulfate aerosol on the surface of mineral aerosols as MgO in the different reaction systems, and synergistic impacts of these environmental factors on the formation of sulfate aerosols in the different seasonal systems, especially in haze days. Meanwhile, a new correction technique was developed to estimate the effective reaction area and initial uptake coefficient of SO2 on the MgO aerosol surfaces. The significant results showed that the reactions of SO2 on the MgO aerosol surfaces in the system of SO2-MgO-dark could produce a small amount of sulfate and a large amount of sulfite and bisulfite, while in the systems of SO2-MgO-h? and SO2-MgO-O3 produce a large amount of sulfate and a small amount of sulfite and bisulfite. The impacts of temperature T and relative humidity RH on the sulfate formation on MgO aerosol surfaces showed a single-peak mode under the UV light condition, respectively. The sensitivities of these environmental factors to the sulfate aerosol formation were found to follow the order of RH > UV >T > O3 > SO2. The revised initial uptake coefficient ?0.REV of SO2 on the MgO aerosols was always between ?0.BET and ?0.GEO, and much closer to actual value. The heterogeneous reaction mechanisms of SO2 on the MgO aerosol surfaces in the different reaction systems were obviously different. In the presence of water, light irradiation and O3 exerted crucially significant roles in promoting sulfate heterogeneous formation. The various environmental factors in the different seasonal systems, especially in haze days, showed different synergistic effects on sulfate aerosol formations. The sulfate aerosol formations in haze days were mostly impacted by RH, T, O3, and SO2 in spring, RH in summer, RH, T, and SO2 in autumn, and RH and SO2 in winter. The study will provide significant scientific bases for understanding and controlling haze pollution formation.

Keyword :

Uptake coefficient Uptake coefficient Synergistic effect Synergistic effect Sensitive factors Sensitive factors Mineral aerosol Mineral aerosol Sulfate aerosol Sulfate aerosol Haze days Haze days

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GB/T 7714 Han, Lihui , Liu, Xinhang , Chen, Yuanyuan et al. Key factors influencing the formation of sulfate aerosol on the surface of mineral aerosols: Insights from laboratory simulations and ACSM measurements [J]. | ATMOSPHERIC ENVIRONMENT , 2021 , 253 .
MLA Han, Lihui et al. "Key factors influencing the formation of sulfate aerosol on the surface of mineral aerosols: Insights from laboratory simulations and ACSM measurements" . | ATMOSPHERIC ENVIRONMENT 253 (2021) .
APA Han, Lihui , Liu, Xinhang , Chen, Yuanyuan , Xiang, Xin , Cheng, Shuiyuan , Wang, Haiyan . Key factors influencing the formation of sulfate aerosol on the surface of mineral aerosols: Insights from laboratory simulations and ACSM measurements . | ATMOSPHERIC ENVIRONMENT , 2021 , 253 .
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[Multidimensional Verification of Anthropogenic VOCs Emissions Inventory Through Satellite Retrievals and Ground Observations]. PubMed
期刊论文 | 2021 , 42 (6) , 2713-2720 | Huanjing kexue
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In this paper, a regional emissions inventory of anthropogenic VOCs was established based on the traditional emissions factor method for the Beijing-Tianjin-Hebei (BTH) region, followed by a multidimensional calibration study based on regional satellite remote sensing information for formaldehyde and typical urban ground VOCs. Inventory calculations showed that the VOCs emissions in BTH in 2013, 2015, and 2017 were 2026700, 2073400, and 1934200 tons, respectively, comprising alkanes (29.83% to 30.72%), unsaturated hydrocarbons (16.54% to 17.68%), aromatic hydrocarbons (27.14% to 27.51%), aldehydes (8.75% to 9.52%), ketones (8.13% to 9.04%), and aldehydes and ketones lipids (5.13% to 6.60%). During 2013-2017, the emission of VOCs in Zhangjiakou, Qinhuangdao, and Hengshui increased slightly (1.10% to 1.66% per year); emissions in Xingtai and Handan decreased slightly (-1.46% to -1.12% per year); and emissions in Chengde, Tangshan, Baoding, and Cangzhou were stable. There trends were consistent with the inter-annual trend of satellite-derived HCHO column concentrations. However, in Beijing, Tianjin, Langfang, and Shijiazhuang, annual variations in VOCs emissions (-6.51%, -3.30%, 2.16%, and 0.11% per year) and HCHO column concentrations (-1.17%, 7.19%, -0.24%, and 6.68% per year) were observed, respectively. In the regional VOCs inventory, a good linear correlation (R>0.5) was achieved between the grid emissions of VOCs and HCHO column concentrations in urban areas, while the correlation was only 0.33 in suburban areas. This is mainly due to the important influence of secondary conversion of VOCs originating from natural sources to HCHO in suburban areas. In addition, ground-level VOCs concentrations were observed in the urban areas of Beijing and Handan, where the emission ratios (ERs) of VOCs and CO were regressed. The ERs of most hydrocarbons were in good agreement with the regressed ERs, but the ERs of ethane were significantly lower (-156% to -73%) and the ERs of aromatic hydrocarbons above C8 were relatively high (54% to 74%). In general, the regional anthropogenic VOCs emissions inventory established in this paper offers high accuracy and reliability.

Keyword :

volatile organic compounds(VOCs) volatile organic compounds(VOCs) emission inventory verification emission inventory verification satellite remote sensing satellite remote sensing ground observation ground observation species inventory species inventory

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GB/T 7714 Wang Yue , Wei Wei , Ren Yun-Ting et al. [Multidimensional Verification of Anthropogenic VOCs Emissions Inventory Through Satellite Retrievals and Ground Observations]. [J]. | Huanjing kexue , 2021 , 42 (6) : 2713-2720 .
MLA Wang Yue et al. "[Multidimensional Verification of Anthropogenic VOCs Emissions Inventory Through Satellite Retrievals and Ground Observations]." . | Huanjing kexue 42 . 6 (2021) : 2713-2720 .
APA Wang Yue , Wei Wei , Ren Yun-Ting , Wang Xiao-Qi , Chen Sai-Sai , Cheng Shui-Yuan . [Multidimensional Verification of Anthropogenic VOCs Emissions Inventory Through Satellite Retrievals and Ground Observations]. . | Huanjing kexue , 2021 , 42 (6) , 2713-2720 .
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Improving source inversion performance of airborne pollutant emissions by modifying atmospheric dispersion scheme through sensitivity analysis combined with optimization model. PubMed
期刊论文 | 2021 , 284 , 117186 | Environmental pollution
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Estimating accurately airborne pollutant emissions source information (source strength and location) is important for achieving effective air pollution management or adequate emergency responses to accidents. Inversion method is one of the useful tools to identify the source parameters. The atmospheric dispersion scheme has been proven to be the key to determining the source inversion performance by influencing the accuracy of the dispersion models. Modifying the atmospheric dispersion scheme is an important potential method to improve the inversion performance, but this has not been studied previously. To fill this gap, a novel approach for parameter sensitivity analysis combined with an optimization method was proposed to improve the source inversion performance by optimizing empirical scheme. The dispersion coefficients σy and σz of the typical BRIGGS scheme under different atmospheric dispersion conditions were optimized and used for air pollutant dispersion and source inversion. The results showed that the prediction performance of the air pollutant concentrations was greatly improved with statistical indices |FB| and NMSE decreased by 0.22 and 2.07, respectively; FAC2 and R increased by 0.10, and 0.08, respectively. For source inversion, the results of the significance analysis suggested that the accuracy in the source strength and location parameter (x0) were both significantly improved by ∼271% (relative deviation reduced from 60.0% to 16.2%) and ∼121% (absolute deviation reduced from 27.6 to 12.5 m). The improvement of source strength inversion accuracy was more significant under unstable atmospheric conditions (stability class A, B, and C); the mean absolute relative deviation was reduced by 97.5%. These results can help to obtain more accurate source information and to provide reliable reference for air pollution managements or emergency response to accidents. This study provides a novel and versatile approach to improve estimation performance of pollutant emission sources and enhances our understanding of source inversion.

Keyword :

Atmospheric dispersion coefficients Atmospheric dispersion coefficients Air pollutant emissions Air pollutant emissions Sensitivity analysis Sensitivity analysis Source inversion Source inversion Dispersion scheme optimization Dispersion scheme optimization

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GB/T 7714 Mao Shushuai , Lang Jianlei , Chen Tian et al. Improving source inversion performance of airborne pollutant emissions by modifying atmospheric dispersion scheme through sensitivity analysis combined with optimization model. [J]. | Environmental pollution , 2021 , 284 : 117186 .
MLA Mao Shushuai et al. "Improving source inversion performance of airborne pollutant emissions by modifying atmospheric dispersion scheme through sensitivity analysis combined with optimization model." . | Environmental pollution 284 (2021) : 117186 .
APA Mao Shushuai , Lang Jianlei , Chen Tian , Cheng Shuiyuan . Improving source inversion performance of airborne pollutant emissions by modifying atmospheric dispersion scheme through sensitivity analysis combined with optimization model. . | Environmental pollution , 2021 , 284 , 117186 .
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Improved estimation of rural residential coal emissions considering coal-stove combinations and combustion modes. PubMed
期刊论文 | 2021 , 272 , 115558 | Environmental pollution
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Rural residential coal combustion (RRCC) has detrimental effects on air quality, climate, and human health. There are large uncertainties regarding emissions from RRCC owing to the lack of consideration of several key factors (e.g. combination modes of coal and stoves, combustion modes, and high temporal resolution). In this study, we provided a new estimation framework for RRCC emissions through a case study in the Beijing-Tianjin-Hebei (BTH) region, China. The emission estimations were improved according to four aspects, namely (1) coal-specific and stove-specific coal consumption was calculated based on face-to-face field interviews of 6700 valid volunteers/households covering 288 villages in 50 counties; (2) the influences of combustion modes (flaming and smoldering modes) on emissions were considered; (3) emissions of different fuel-stove combinations were estimated based on coal, stove, and combustion mode-specific RRCC consumption and localised emission factors; and (4) a method for emission estimation with high temporal resolution (1 h) was developed. The results indicated that RRCC emitted 413.6 kt SO2, 55.7 kt NOx, 5717.3 kt CO, 149.4 kt VOCs, 167.1 kt PM2.5, 18.2 kt EC, 32.5 kt OC, and 8.2 kt NH3 in 2016. The combination of bituminous coal and an advanced coal stove was the most significant contributor (20.7-71.8%) to various pollutant emissions. Coal combusted under the flaming mode contributed to most (81.9%) of the total coal consumption, and thus emitted the majority (50.8-99.8%) of pollutants, except for VOCs. Meanwhile, that under the smoldering mode only accounted for 18.1% of the total consumption, but contributed 49.2% and 74.7% of the CO and VOCs emissions, respectively. Two clear emission peaks occurred at approximately 7:00-9:00 and 18:00-20:00. The detailed coal consumption and emissions with high temporal and spatial resolution can provide sound data for further research on rural environmental issues and scientific support to pollution control strategies.

Keyword :

Advanced coal stove Advanced coal stove Coal-stove combination Coal-stove combination Emission factors Emission factors Combustion modes Combustion modes Rural coal emissions Rural coal emissions

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GB/T 7714 Zhou Ying , Huang Dawei , Lang Jianlei et al. Improved estimation of rural residential coal emissions considering coal-stove combinations and combustion modes. [J]. | Environmental pollution , 2021 , 272 : 115558 .
MLA Zhou Ying et al. "Improved estimation of rural residential coal emissions considering coal-stove combinations and combustion modes." . | Environmental pollution 272 (2021) : 115558 .
APA Zhou Ying , Huang Dawei , Lang Jianlei , Zi Teng , Chen Dongsheng , Zhang Yuying et al. Improved estimation of rural residential coal emissions considering coal-stove combinations and combustion modes. . | Environmental pollution , 2021 , 272 , 115558 .
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