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Willingness of end users to pay for e-waste recycling 终端用户是否愿意为回收电子废物付费
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/GJESM.2021.01.04
H. Nguyen, C. Lee, Rern-Jay Hung
BACKGROUND AND OBJECTIVES: The sheer volume of electrical and electronic waste (e-waste) has presently been generated in Vietnam, posing a growing concern regarding its impact can have on the environment and human health. Therefore, the need for developing policies and regulations towards the environmentally sound management of e-waste is becoming crucial. Although the municipalities play an important role in e-waste recycling program, there does not appear to be any study involving residents’ perceptions on e-waste management. This paper aims to examine the influencing factors of end users’ willingness to pay and their payment preferences toward e-waste recycling.  METHODS: The logistic regression model was employed to analyze a qualified data set collected through a personal interview survey in Danang city, Vietnam. All analyses were conducted using Statistical Package for Social Sciences software (version 22.0).  FINDINGS: The results revealed that the end users’ willingness to participate in recycling programs, laws and regulations, inconvenience of recycling and past experience were four key determinants significantly contributing to the willingness to pay for recycling e-waste. With regards recycling payment methods, most of the participants (36%) were in favor of deposit and refund scheme, while pre-disposal fees and advanced recycling fees came in second and third place (25.8% and 21%, respectively), making monthly payment of recycling fees the least preferred (10.2%).  CONCLUSION: These findings may provide policy-makers with crucial information for better e-waste management policy development, which helps address the conflict between development and conservation, may be applicable in Vietnam and other countries as well.
背景和目标:越南目前产生了大量的电气和电子废物(电子废物),其对环境和人类健康的影响日益引起人们的关注。因此,制定对电子废物进行无害环境管理的政策和法规的必要性变得至关重要。虽然市政当局在电子废物回收计划中发挥着重要作用,但似乎没有任何研究涉及居民对电子废物管理的看法。本文旨在研究终端用户对电子垃圾回收的支付意愿及其支付偏好的影响因素。方法:采用logistic回归模型对越南岘港市个人访谈调查收集的合格数据集进行分析。所有分析均使用Statistical Package for Social Sciences软件(version 22.0)进行。研究发现:最终用户参与回收计划的意愿、法律法规、回收的不便和过去的经验是影响电子垃圾回收意愿的四个关键决定因素。在回收费用支付方式方面,大部分受访者(36%)支持押金和退款,其次是预处理费和提前回收费(分别为25.8%和21%),最不喜欢按月支付回收费(10.2%)。结论:这些发现可能为决策者更好地制定电子废物管理政策提供重要信息,有助于解决发展与保护之间的冲突,也可能适用于越南和其他国家。
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引用次数: 8
Energy-innovation knowledge common connection point management in preventing outbreak of the Covid-19 pandemicin a University a高校新冠肺炎疫情防控中的能源创新知识共接点管理
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/gjesm.2022.01.04
V. Shcherbak, I. Gryshchenko, L. Ganushchak-Yefimenko, O. Nifatova, V. Bobrovnyk, M. Verhun
BACKGROUND AND OBJECTIVES: The new wave of the Covid-19 pandemic has complicated the working conditions of higher education institutions in Ukraine. In this regard, saving energy resources of the university offers an opportunity to get out of the crisis. The purpose of the study is to develop a management system for energy complexes with non-conventional renewable energy sources in the context of preventing a new outbreak of Covid-19 pandemic. METHODS: The method of Deutsche Gesellschaft fur Nachhaltiges Bauen was used to conduct energy audits, construct energy profiles of university offices. The cluster analysis was used to perform energy certification of university offices according to the indicators of integral energy efficiency potential and the level of annual specific energy consumption. Fuzzy methods made it possible to classify all the buildings into 3 categories (A, B, C) to prioritize their use in the light of Covid-19 pandemic. The system for monitoring the attained level of energy efficiency is based on the use of discriminant analysis. FINDINGS: Implementation of the weighted strategy has proved that the classes will be given online, 23% of all offices. Category A (administrative, technical, service buildings;laboratories with unique equipment with 24-hour service) will be used in a pessimistic scenario (continuation of Covid-19 pandemic). In the optimistic scenario (end of Covid-19 pandemic), by means of the suggested energy efficiency monitoring system, the probability of using category A officesmakes100%, B offices- 50% and C offices- 13%. CONCLUSION: Implementation of the developed energy efficiency action plan will offer the opportunity for the University to use reasonably the common connection point of knowledge management of energy complexes with non-conventional renewable energy sources in the context of preventing a new outbreak of the Covid-19 pandemic. The profitability of implementing a weighted energy efficiency strategy is 15%, with a payback period of 6.7 years for the purchase and installation of non-conventional renewable energy equipment. In the future, it would be advisable to convert gradually all of the remaining 14 university buildings to the autonomous use of non-conventional renewable energy sources, using a common connection point for the knowledge management of the energy complexes. (C) 2022 GJESM. All rights reserved.
背景和目的:新一波Covid-19大流行使乌克兰高等教育机构的工作条件复杂化。在这方面,节约大学的能源资源提供了一个摆脱危机的机会。该研究的目的是在防止新冠肺炎疫情爆发的背景下,开发利用非常规可再生能源的能源综合体管理系统。方法:采用德国能源协会(Deutsche Gesellschaft fur Nachhaltiges Bauen)的方法进行能源审计,构建高校办公室的能源概况。采用聚类分析方法,根据综合能效潜力指标和年比能耗水平对高校办公场所进行能源认证。模糊方法可以将所有建筑物分为3类(A, B, C),以便在Covid-19大流行的情况下优先使用它们。监测已达到的能源效率水平的系统是基于判别分析的使用。结果:加权策略的实施证明课程将在网上授课,占所有办公室的23%。A类(行政、技术、服务建筑;拥有24小时服务的独特设备的实验室)将用于悲观情景(Covid-19大流行持续)。在乐观的情况下(Covid-19大流行结束),通过建议的能源效率监测系统,使用A类办公室的概率为100%,B类办公室为50%,C类办公室为13%。结论:制定的能源效率行动计划的实施将为大学提供机会,在防止新冠肺炎大流行爆发的背景下,合理利用能源综合体与非常规可再生能源的知识管理的共同连接点。实施加权能源效率战略的盈利能力为15%,购买和安装非常规可再生能源设备的投资回收期为6.7年。在未来,建议将剩余的14座大学建筑逐渐转换为自主使用非常规可再生能源,使用一个共同的连接点来管理能源综合体的知识。(c) 2022年。版权所有。
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引用次数: 1
The effect of short-term of fine particles on daily respiratory emergency in cities contaminated with wood smoke 细颗粒物短期浓度对柴烟污染城市日呼吸紧急状况的影响
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/GJESM.2021.01.02
R. Torres, N. Baker, G. Bernal, F. Peres, A. Maldonado, D. Cáceres
BACKGROUND AND OBJECTIVES: The goal of this study is to evaluate in a time-series study the short-term effects of particulate matter-2.5exposure on respiratory emergency visits in six central-southern Chilean cities highly contaminated by wood smoke. METHODS: Association was assessed using both distributed lag linear and non-linear Poisson models constrained to a 7-day lag period, adjusting for temporal trends and meteorological variables and stratifying seasonally into cold and warm periods. FINDING: The results showed that the daily average concentrations of particulate matter-2.5in the cold period were 3 to 6 times those recorded in the warm period, exceeding the daily norm of 50 µg/m3 the 93.3% of the time versus 6.7%, respectively. The average daily number of respiratory emergency visits were between 30% and 64% higher in the cold period compared to the warm one. From linear models, cumulative relative risk ratios over 0-7 day lags per 10 mg/m3 of fine particle increase were between 1.004 (95% confidence Interval: 0.998 - 1.010) and 1.061 (95% confidence Interval: 1.049 - 1.074); these annual effects are attributable to the cold period impact where the cumulative risk ratios  were between 1.008 (95% confidence Interval: 1.004 - 1.012) and 1.036 (95% confidence Interval: 1.026 - 1.047), since significant effects of fine particles on the studied risk were not found for the warm period. CONCLUSION: With non-linear models we observed strong increasing associations with the level of particles for the overall period. High levels of fineparticles from firewood are associated with respiratory effects observable several days after exposure. Health effects found in this study suggest that current policies tending to mitigate woodsmoke-related emissions should continue and reinforce.
背景和目的:本研究的目的是在一项时间序列研究中评估在智利中南部六个被木材烟雾严重污染的城市中暴露于颗粒物质2.5对呼吸道急诊就诊的短期影响。方法:使用限制在7天滞后期的分布滞后线性和非线性泊松模型来评估相关性,调整时间趋势和气象变量,并按季节分层为冷期和暖期。结果表明:寒期颗粒物-2.5的日平均浓度是暖期的3 ~ 6倍,超过50µg/m3日平均值的时间分别为93.3%和6.7%。与温暖季节相比,寒冷季节的平均每日呼吸道急诊次数高出30%至64%。从线性模型来看,每10 mg/m3细颗粒物增加0-7天的累积相对风险比在1.004(95%置信区间:0.998 ~ 1.010)~ 1.061(95%置信区间:1.049 ~ 1.074)之间;这些年效应可归因于冷期的影响,其中累积风险比在1.008(95%置信区间:1.004 - 1.012)和1.036(95%置信区间:1.026 - 1.047)之间,因为在暖期未发现细颗粒物对所研究风险的显著影响。结论:通过非线性模型,我们观察到在整个时期内,与颗粒水平有很强的增加关系。来自柴火的高水平细颗粒物与接触数天后可观察到的呼吸效应有关。本研究发现的健康影响表明,当前旨在减轻柴烟相关排放的政策应继续并加强。
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引用次数: 2
Evaluation of genotoxic potential induced by marine cage culture 海洋网箱培养基因毒性潜势评价
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/GJESM.2021.01.06
F. Turan, M. Turgut
BACKGROUND AND OBJECTIVES: The eutrophication process is increased by anthropogenic or aquaculture facilities in marine ecosystems. DNA damage biomarkers for fish species detect genotoxic parameters for ecological risk assessment. The aim of the present study was to determine genotoxic potential induced by marine cage culture in Iskenderun Bay on gilthead sea bream (Sparus aurata) using Comet assay.  METHODS: This study was conducted at cage and reference stations of Iskenderun Bay, Northeastern Mediterranean in January 2017. The wild and cultured samples of S. aurata and water samples were collected from wild and fish farm.  FINDING: The DNA damages at gill and liver cells of gilthead sea bream in the present study were observed with a higher level of DNA damage in gill cells compared to liver cells, and were determined at the low and minimal scale at the cage and reference stations, respectively. The present study demonstrated that the TP values were recorded at 0.020 and 0.016 mg/L in the cage and reference stations which are at border and below 0.020 mg/L. The DIN values were recorded at 0.097 and 0.075 mg/L in the cage and reference stations, which are at below 0.1 mg/L. The water bodies in the cage and reference stations exhibit Moderate/Mesotrophic water quality The correlations between physical-chemical parameters and DNA damage were shown that DIN, NH4-N, NO3-N and NO2-N in water revealed significant positive correlations with DNA damage levels in gill cells.  CONCLUSION: The present study provides the first data set on genotoxic damage induced by marine cage culture in Iskenderun Bay on gilthead sea bream. The result of this research is an early warning for the marine system and further detailed research is needed to establish the source of the pollution and monitor environmental pollution.
背景和目的:海洋生态系统中的人为或水产养殖设施增加了富营养化过程。鱼类DNA损伤生物标志物检测基因毒性参数,用于生态风险评估。本研究的目的是用彗星法测定Iskenderun湾海水网箱培养对金头鲷(Sparus aurata)的遗传毒性潜势。方法:本研究于2017年1月在地中海东北部伊斯肯德伦湾的笼站和参考站进行。在野外和渔场采集了野生和养殖的金弧菌样本和水样。发现:本研究中,我们观察到鳙鱼鳃细胞和肝细胞的DNA损伤,与肝细胞相比,鳃细胞的DNA损伤水平更高,并分别在笼子和参考站的低尺度和最小尺度上进行了测定。本研究表明,笼站和参考站的TP值分别为0.020和0.016 mg/L,在边界和低于0.020 mg/L。笼站和参比站的DIN值分别为0.097和0.075 mg/L,均低于0.1 mg/L。笼和参比站的水体水质为中/中营养型。理化参数与DNA损伤的相关性表明,水中DIN、NH4-N、NO3-N和NO2-N与鳃细胞DNA损伤水平呈显著正相关。结论:本研究首次提供了Iskenderun湾海水网箱养殖对鳙鱼的遗传毒性损伤数据。本研究的结果是对海洋系统的预警,需要进一步详细的研究来确定污染源和监测环境污染。
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引用次数: 2
Calorific and greenhouse gas emission in municipal solid waste treatment using biodrying 生物干燥处理城市生活垃圾的热量和温室气体排放
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/GJESM.2021.01.03
B. Zaman, W. Oktiawan, M. Hadiwidodo, E. Sutrisno, P. Purwono
BACKGROUND AND OBJECTIVES: Urban intensity and activities produce a large amount of biodegradable municipal solid waste. Therefore, biodrying processing was adopted to ensure the conversion into Refuse Derived Fuel and greenhouse gases. METHODS: This study was performed at a greenhouse, using six biodrying reactors made from acrylic material, and equipped with digital temperature recording, blower, and flow meters. The variations in airflow (0, 2, 3, 4, 5, 6 L/min/kg) and the bulking agent (15%) were used to evaluate calorific value, degradation process and GHG emissions. FINDINGS: The result showed significant effect of airflow variation on cellulose content and calorific value. Furthermore, the optimum value was 6 L/min/kg, producing a 10.05% decline in cellulose content, and a 38.17% increase in calorific value. Also, the water content reduced from 69% to 40%. The CH4 concentration between control and biodrying substantially varied at 2.65 ppm and 1.51 ppm respectively on day 0 and at peak temperature. Morever, the value of N2O in each control was about 534.69 ppb and 175.48 ppb, while the lowest level was recorded after biodrying with 2 L/min/kg airflow. CONCLUSION: The calorific value of MSW after biodrying (refuse derived fuel) ranges from 4,713 – 6,265 cal/g. This is further classified in the low energy coal (brown coal) category, equivalent to <7,000 cal/g. Therefore, the process is proven to be a suitable alternative to achieve RDF production and low GHG emissions.
背景和目的:城市强度和活动产生大量可生物降解的城市固体废物。因此,采用生物干燥处理,以确保转化为垃圾衍生燃料和温室气体。方法:本研究在温室中进行,使用六个由丙烯酸材料制成的生物干燥反应器,并配备数字温度记录,鼓风机和流量计。利用气流(0、2、3、4、5、6 L/min/kg)和填充剂(15%)的变化来评估热值、降解过程和温室气体排放。结果:气流变化对纤维素含量和热值有显著影响。最佳处理条件为6 L/min/kg,纤维素含量降低10.05%,发热量提高38.17%。同时,水含量从69%降低到40%。对照和生物干燥之间的CH4浓度在第0天和峰值温度分别为2.65 ppm和1.51 ppm,变化很大。各对照N2O值分别为534.69 ppb和175.48 ppb,以2 L/min/kg气流进行生物干燥后N2O值最低。结论:生活垃圾生物干燥后的热值(垃圾衍生燃料)为4,713 ~ 6,265 cal/g。这进一步被归类为低能煤(褐煤)类别,相当于<7,000卡路里/克。因此,该工艺被证明是实现RDF生产和低温室气体排放的合适替代方法。
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引用次数: 11
Using multivariate generalized linear latent variable models to measure the difference in event count for stranded marine animals 使用多元广义线性潜变量模型测量搁浅海洋动物事件计数的差异
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2021-01-01 DOI: 10.22034/GJESM.2021.01.09
R. Caraka, R. Chen, Youngjo Lee, T. Toharudin, Cahyo Rahmadi, M. Tahmid, A. Achmadi
BACKGROUND AND OBJECTIVES: The classification of marine animals as protected species makes data and information on them to be very important. Therefore, this led to the need to retrieve and understand the data on the event counts for stranded marine animals based on location emergence, number of individuals, behavior, and threats to their presence. Whales are generally often stranded in very shallow areas with sloping sea floors and sand. Data were collected in this study on the incidence of stranded marine animals in 20 provinces of Indonesia from 2015 to 2019 with the focus on animals such as Balaenopteridae, Delphinidae, Lamnidae, Physeteridae and Rhincodontidae. METHODS:Multivariate latent generalized linear model was used to compare several distributions to analyze the diversity of event counts. Two optimization models including Laplace and Variational approximations were also applied. RESULTS: The best theta parameter in the latent multivariate latent generalized linear latent variable model was found in the Akaike Information Criterion, Akaike Information Criterion Corrected and Bayesian Information Criterion values, andthe information obtained was used to create a spatial cluster. Moreover, there was a comprehensive discussion on ocean-atmosphere interaction and the reasons the animals were stranded. CONCLUSION: The changes in marine ecosystems due to climate change, pollution, overexploitation, changes in sea use, and the existence of invasive alien species deserve serious attention.
背景与目的:海洋动物作为受保护物种的分类使得它们的数据和信息非常重要。因此,这导致需要检索和了解搁浅海洋动物的事件计数数据,这些数据基于位置出现、个体数量、行为和对它们存在的威胁。鲸鱼通常被困在非常浅的地方,有倾斜的海底和沙子。本研究收集了2015 - 2019年印度尼西亚20个省搁浅海洋动物的发生率数据,重点研究了Balaenopteridae、Delphinidae、Lamnidae、Physeteridae和Rhincodontidae等动物。方法:采用多元潜在广义线性模型比较几种分布,分析事件计数的多样性。同时应用了拉普拉斯和变分逼近两种优化模型。结果:发现赤池信息准则、赤池信息准则修正值和贝叶斯信息准则值在潜多元广义线性潜变量模型中theta参数最佳,并利用所得信息构建空间聚类。此外,还就海洋与大气的相互作用以及动物搁浅的原因进行了全面的讨论。结论:气候变化、污染、过度开发、海洋利用方式变化和外来入侵物种的存在等因素对海洋生态系统的影响值得重视。
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引用次数: 10
Cyanide ion oxidation by catalytic effect of nickel ferrites activated carbon composites 镍-铁氧体-活性炭复合材料催化氰化物离子氧化
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2020-12-18 DOI: 10.22034/GJESM.2021.02.07
C. Feijoó, E. Torre, R. Narváez
BACKGROUND AND OBJECTIVES: Cyanide is a commonly-used substance in the gold recovery processes due to its high affinity for forming complexes with the precious metal, but inadequate handling and its final arrangement can lead to severe environmental contamination. In this context, this research focuses on the preparation of nickel ferrite-activated carbon catalysts for catalytic oxidation of cyanide ion in the presence of air.  METHODS: Hydrated salts of nickel (Ni(NO3)2·6H2O) and iron (Fe(NO3)3·9H2O) were used as precursors. The preparation pathways of ferrite and of ferrite-activated carbon composites were hydro-chemical with oxalic acid (C2H2O4) and co-precipitation with sodium hydroxide. The parameters evaluated for catalyst preparation were Ni/Fe molar ratios (1/1.5 and 1/2), calcination times and temperatures (2-4 h/600-900°C), and ferrite-activated carbon mass ratios in the case of composites (1/1, 1/2 and 1/3).  FINDINGS: Oxidation results showed that the ideal Ni/Fe molar ratio was 1/2, and the calcination time was 4 h at 600 and 900ᵒC for co-precipitation and hydro-chemical pathways of nickel ferrites, respectively. The catalyst that showed the greatest capacity for cyanide transformation was that obtained by the hydro-chemical pathway with oxalic acid, achieving efficiencies of 96.3% oxidation of cyanide ion. It was also determined that the largest impregnation of ferrite on the carbonaceous surface was 52.6% through the treatment with oxalic acid, with which the composite was obtained with the best catalytic properties of cyanide ion.  CONCLUSION: Nickel ferrite is able to oxidize cyanide ion to cyanate ion; being the ferrite-activated carbon combination, with which composite materials with catalytic properties of cyanide ion are obtained. Because of this, the materials studied could be applied in the detoxification of cyanurate solutions from metallurgical processes.
背景和目的:氰化物是金回收过程中常用的物质,因为它与贵金属形成络合物的亲和力很高,但处理和最终排列不当会导致严重的环境污染。在这种背景下,本研究的重点是制备用于在空气存在下催化氧化氰离子的镍铁氧体活性炭催化剂。方法:以镍(Ni(NO3)2·6H2O)和铁(Fe(NO3,3·9H2O)的水合盐为前驱体。铁氧体和铁氧体-活性炭复合材料的制备途径为草酸水化学和氢氧化钠共沉淀。催化剂制备的评估参数为Ni/Fe摩尔比(1/1.5和1/2)、煅烧时间和温度(2-4小时/600-900°C),以及复合材料中的铁氧体-活性炭质量比(1/1、1/2和1/3)。结果:氧化结果表明,理想的Ni/Fe摩尔比为1/2,在600和900下煅烧时间为4hᵒC分别用于镍铁氧体的共沉淀和水化学途径。表现出最大氰化物转化能力的催化剂是通过草酸的水化学途径获得的,氰化物离子的氧化效率为96.3%。通过草酸处理,铁氧体在碳质表面的最大浸渍率为52.6%,得到了对氰离子具有最佳催化性能的复合材料。结论:镍铁氧体能将氰离子氧化为氰酸根离子;作为铁氧体-活性炭的组合,可获得具有氰离子催化性能的复合材料。正因为如此,所研究的材料可以应用于冶金过程中氰尿酸盐溶液的解毒。
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引用次数: 3
Two-dimensional flood model for risk exposure analysis of land use/land cover in a watershed 基于二维洪水模型的流域土地利用/土地覆盖风险暴露分析
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2020-12-08 DOI: 10.22034/GJESM.2021.02.06
G. Puno, R. Puno, I. V. Maghuyop
BACKGROUND AND OBJECTIVES: The study involved developing a two-dimensional flood model to analyze the risk exposure of land use/land cover based on the generated flood hazard maps for the six return period scenarios in the Solana watershed. METHODS: The approach consisted of applying hydrologic and hydraulic numerical flood models and the suite of advanced geographic information systems and remote sensing technologies. The process involved utilizing a high-resolution digital elevation model and a set of high-precision instruments such as the real-time kinematic-global position system receiver, digital flow meter, deep gauge, and automatic weather station in collecting the respective data on bathymetry, river discharge, river depth, and rainfall intensity during a particular climatic event, needed for the model development, calibration and validation. FINDINGS: The developed two-dimensional flood model could simulate flood hazard with an 86% accuracy level based on the coefficient of determination statistics. The flood risk exposure analysis revealed that coconut is the most affected, with 31.3% and 37.1% being at risk across the 2-year and 100-year return period scenarios, respectively. Results also showed that rice and pineapple are at risk of flooding damage with the increasing rate of exposure by a magnitude of 42.9 and 9.3 across the 2-year and 100-year flood scenarios, respectively. CONCLUSION: The study highlighted the integration of the findings and recommendations in the localized comprehensive land use plan and implementation to realize the challenge of building a climate change proof and a flood-resilient human settlement in the urbanizing watershed of Solana.
背景与目的:基于生成的索拉纳流域六个回归期情景的洪水灾害图,本研究建立了一个二维洪水模型,以分析土地利用/土地覆盖的风险暴露。方法:采用水文水力数值洪水模型,结合先进的地理信息系统和遥感技术。该过程包括利用高分辨率数字高程模型和一套高精度仪器,如实时运动学全球定位系统接收器、数字流量计、深度计和自动气象站,在特定气候事件中收集有关水深、河流流量、河流深度和降雨强度的数据,这些数据是模型开发、校准和验证所需的。结果:基于确定统计系数,建立的二维洪水模型能以86%的准确率模拟洪水灾害。洪水风险暴露分析显示,椰子是受影响最大的,在2年和100年的回归期情景中,分别有31.3%和37.1%的风险。结果还表明,在2年和100年的洪水情景中,水稻和菠萝面临洪水破坏的风险,暴露率分别增加了42.9和9.3级。结论:该研究强调了将研究结果和建议整合到局部土地综合利用规划和实施中,以实现索拉纳城市化流域建设气候变化和抗洪人类住区的挑战。
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引用次数: 10
Increasing resident participation in waste management through intrinsic factors cultivation 通过培养内在因素,提高居民对废物管理的参与
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2020-11-26 DOI: 10.31219/osf.io/s4nft
Sunarti, J. Tjakraatmadja, Achmad Ghazali, B. Rahardyan
BACKGROUND AND OBJECTIVES: Resident participation in waste management is essential to overcome waste problems effectively. In many developing countries, the local government has been struggling to encourage resident involvement in the waste management process, but the participation rate is still low. Thus, it requires a system that can encourage residents to participate effectively and sustainably. Therefore, this study aimed to determine what determinant factors, either extrinsic or intrinsic, significantly improve resident participation by changing behaviour toward waste management.METHODS: This study tried to get insights from previous studies about key determinant factors affecting resident behaviour toward waste management to improve participation, significantly using a literature review method.FINDINGS: Educational setting for residents is crucial to improve waste management participation by cultivating key intrinsic factors with support from extrinsic factors that lead to changing behaviour. This study identified eight types of key contents shared in the educational setting to ensure its improvement. Key intrinsic factors should be cultivated, including six kinds of knowledge and five emotional domain factors. The six critical types of knowledge include technical experience, waste management performance knowledge, perception of benefits, environmental awareness, understanding of individual and social responsibility, and understanding the social norms and regulations. The five intrinsic factors in the emotional domain include environmental efficacy, motivation, personal moral norms, PBC, and Attitude toward waste management. All the critical determinant factors, including intrinsic and extrinsic factors, should support each other to improve residents’ behaviour, leading to sustainable participation.CONCLUSION: Relevance of educational content to the residents is crucial to ensure educational intervention effectiveness. With full support from the antecedent factors, waste management behaviour can be nurtured sustainably, significantly increasing the participation rate. Combining extrinsic and intrinsic factors is recommended to ensure the effectiveness of the improvement of resident participation.
背景和目的:居民参与废物管理对于有效地克服废物问题至关重要。在许多发展中国家,地方政府一直在努力鼓励居民参与废物管理过程,但参与率仍然很低。因此,它需要一个能够鼓励居民有效和可持续地参与的系统。因此,本研究旨在确定哪些决定因素,无论是外在的还是内在的,通过改变居民对废物管理的行为显著提高居民参与。方法:本研究试图从以往的研究中获得影响居民对废物管理行为的关键决定因素的见解,以提高参与度,主要采用文献综述法。研究发现:通过培养关键的内在因素和外在因素的支持,居民的教育环境对提高废物管理参与至关重要,从而导致行为的改变。本研究确定了教育环境中共享的八种关键内容,以确保其改善。培养关键的内在因素,包括六种知识和五种情感领域因素。六种关键类型的知识包括技术经验、废物管理绩效知识、利益感知、环境意识、对个人和社会责任的理解以及对社会规范和法规的理解。情感领域的五个内在因素包括环境效能、动机、个人道德规范、PBC和对废物管理的态度。所有关键的决定因素,包括内在因素和外在因素,应该相互支持,以改善居民的行为,从而实现可持续的参与。结论:教育内容与居民的相关性是确保教育干预效果的关键。在前因的充分支持下,废物管理行为可以持续培养,显著提高参与率。建议将外在因素和内在因素结合起来,以确保居民参与改善的有效性。
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引用次数: 5
Remediation of ozone pollution by ornamental plants in indoor environment. 室内环境中观赏植物对臭氧污染的修复
IF 3.4 Q2 ENVIRONMENTAL SCIENCES Pub Date : 2020-10-01 DOI: 10.22034/GJESM.2020.04.06
P. Saxena, S. Sonwani
The indoor air quality is much more matter of concern as relative to ambient or outdoor air quality, especially in the context of human health.  However, very few studies have been reported for remediation of indoor ozone by plant species. The main objective of this study is to evaluate ozone deposition velocities and ozone removal effectiveness of three indoor ornamental plant species (Dracaena deremensis, Tagetes erecta and Lilium candidum) that can be used in the remediation of indoor ozone. Ozone deposition velocity was estimated through measurement of leaf surface areas of selected plant species and exposing them to 3-regular daytime cycles where ozone concentrations under controlled conditions first increased from 8 h followed by 16 h in the absence of ozone. Values of ozone deposition velocity after the completion of first exposure were found maximum (7.7 m/h) in case of Dracaena deremensis and minimum (0.5 m/h) after the completion third exposure in Lilium candidum. The ozone removal effectiveness found in the range of 0.7 to 13% for leaf surface area to room volume ratio of 0.06/m with reference to an air exchange system and background loss present in an indoor environment. Among the selected plant species, Dracaena deremensis has got the highest ozone deposition velocity as well as ozone removal effectiveness and Lilium candidum has got the lowest values. Hence, this study concludes with the sustainable use of ornamental plant species in the remediation of the indoor ozone pollution, which can further help in improving the health condition of the residents.
相对于环境或室外空气质量,室内空气质量更令人关注,尤其是在人类健康的背景下。然而,很少有关于植物物种修复室内臭氧的研究报告。本研究的主要目的是评估三种可用于室内臭氧修复的室内观赏植物(龙血树、万寿菊和百合)的臭氧沉积速度和臭氧去除效果。臭氧沉积速度是通过测量选定植物物种的叶表面积并将其暴露于3个规则的日间周期来估计的,在控制条件下,臭氧浓度首先从8小时增加,然后在没有臭氧的情况下从16小时增加。在Dracaena deremensis的情况下,发现第一次暴露完成后的臭氧沉积速度值最大(7.7m/h),在Lilium candium的情况下发现第三次暴露完成时的臭氧沉积速率值最小(0.5m/h)。根据空气交换系统和室内环境中存在的背景损失,当叶表面积与房间体积比为0.06/m时,臭氧去除效率在0.7%至13%的范围内。在选定的植物物种中,龙血树的臭氧沉积速度和臭氧去除效果最高,而白百合的臭氧沉积速率和臭氧去除效率最低。因此,本研究得出结论,可持续利用观赏植物物种修复室内臭氧污染,有助于进一步改善居民的健康状况。
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引用次数: 13
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GLOBAL JOURNAL OF ENVIRONMENTAL SCIENCE AND MANAGEMENT-GJESM
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