-Khung tối ưu hóa đa mục tiêu mới thực hiện cơ sở hạ tầng đô thị xanh-xám dưới tác động của biến đổi khí hậu

-Các biến thể không gian-thời gian của sự thoát hơi nước trên cạn trên khắp Trung Quốc từ năm 2000 đến năm 2019

-Rủi ro môi trường của khẩu trang dùng một lần trong đại dịch COVID-19: Những thách thức và quản lý

-Xử lý tổng hợp chất thải thực phẩm với nước thải và bùn thải: Phân tích năng lượng và khí thải carbon với các tác động kinh tế

-Phương pháp tiếp cận đánh giá vòng đời cảnh quan đa sản phẩm để đánh giá tiềm năng giảm nhẹ khí hậu của địa phương

-Khử cacbon trong các công ty điện lực quốc doanh: Bài học từ phân tích so sánh

-Đánh giá tiềm năng thu hồi năng lượng và phân tích tác động môi trường của chất thải đối với các phương án năng lượng sử dụng đánh giá vòng đời

-Xử lý nhiệt hóa chất thải khẩu trang dùng một lần COVID-19 hàng ngày: Tiềm năng phát điện và phân tích tác động môi trường

-Phản ứng của thương hiệu đối với sự hỗn loạn của môi trường: Một khuôn khổ và các đề xuất để chống lại, phục hồi và tái tạo

-Ảnh hưởng của khí hậu địa phương đến các yếu tố chi phối và kích thước ngưỡng của hiệu quả làm mát của các công viên đô thị

-Khung phương pháp luận cho các nhà máy xử lý nước thải cung cấp dịch vụ mở rộng: Đánh đổi kinh tế và quyết định công nghệ

-Mô hình không gian và độ nhạy ôzôn của cacbonyl ở thể khí tại 11 khu đô thị ở đông nam Trung Quốc

-Khám phá mức tiêu thụ kháng sinh giữa các lưu vực thành thị và cận đô thị bằng cách sử dụng cả thuốc gốc và các chất chuyển hóa có liên quan trong dịch tễ học dựa trên nước thải

-Kiểm soát quy trình để cải thiện hiệu suất khử nước của bùn thải dựa trên quá trình thủy phân nhiệt hỗ trợ khung xương cacbon

-Sự tiến hóa quang hóa của không khí trong môi trường đô thị nhiệt đới của Ấn Độ: Một nghiên cứu dựa trên mô hình

-Đánh giá hiệu suất của hệ thống pin nhiên liệu oxit rắn sử dụng khí sinh học để xử lý chất thải rắn đô thị

-Thích ứng với biến đổi khí hậu: Một nghiên cứu về thực hành quy hoạch và quản lý nước đô thị trong khu vực

-Loại bỏ chất ô nhiễm hiệu quả và tính linh hoạt của vi sinh vật dưới độ dốc muối cao của hệ thống xử lý nước thải mỏ dầu

-Trao đổi không khí - đất và các rủi ro do parafin clo hóa chuỗi ngắn và chuỗi trung bình gây ra: Nghiên cứu điển hình tại một khu vực bị ô nhiễm ở Trung Quốc

-Loại bỏ amoniac khỏi nước thải công nghiệp bằng cách sử dụng oxit zirconium và vật liệu nano graphene-oxit

-Chất xúc tác Fe-zeolit để ozon hóa nước thải giấy và bột giấy cho nguồn nước bền vững

-Loại bỏ các kim loại nặng độc hại từ nước ô nhiễm công nghiệp bằng cách sử dụng hydrophytes

-Tích tụ công nghiệp và phát thải khí SO2 công nghiệp ở 285 thành phố của Trung Quốc: Bằng chứng từ nhiều loại kết tụ

-Xây dựng SnO2 / g-C3N4 một hợp chất nano hiệu quả để phân hủy quang xúc tác của amoxicillin và nước thải dược phẩm

-Hướng tới xử lý nước thải bền vững: Ảnh hưởng của sắt, kẽm và nhôm làm cực dương kết hợp với cầu muối đến hiệu suất của pin nhiên liệu vi sinh

-Dòng chảy khối lượng, sự làm giàu và các tác động môi trường tiềm tàng của thủy ngân trong nhà máy xi măng tiền nhiệt luyện sơ bộ sử dụng nhiều chất thải công nghiệp và khai thác

Science of The Total Environment, Volume 825, 15 June 2022, 153954

Abstract

Frequent urban flooding disasters can cause severe economic and property losses. Accordingly, the construction of sponge city has become critical to alleviating urban flooding. However, the functional and structural integration of Green Infrastructure (GI) and Gray Drainage Facility (GDF) is still a matter of concern. This study proposed a novel implementation framework for GI and GDF synchronization optimization (G-GSOIF) based on the SWMM and SUSTAIN models, and used data from Beilin District in Xi'an, China to verify the effects. The results show that the spatiotemporal integrated optimization design of GI and GDF proves to be effective in stormwater management. The total investment was reduced by 16.7% and economic benefit was increased by 15.4% based on disaster risk control, and the utilization rate of rainwater resources exceeded 40%. The Staged optimization model (SSOM) based on the SUSTAIN model established in the G-GSOIF was demonstrated to effectively cope with the impact of future climate change by adjusting and optimizing the design scheme dynamically in different simulation scenarios. Integrated LID (I-LID) measures are conducive for simulation of large catchment areas, and have the same implementation effect as distributed LID measures. The results of this study could support decision-making for urban stormwater management and sponge city construction.

Science of The Total Environment, Volume 825, 15 June 2022, 153951

Abstract

Terrestrial evapotranspiration (ET) refers to a key process in the hydrological cycle by which water is transferred from the Earth's surface to lower atmosphere. With spatiotemporal variations, ET plays a crucial role in the global ecosystem and affects vegetation distribution and productivity, climate, and water resources. China features a complex, diverse natural environment, leading to high spatiotemporal heterogeneity in ET and climatic variables. However, past and future ET trends in China remain largely unexplored. Thus, by using MOD16 products and meteorological datasets, this study examined the spatiotemporal variations of ET in China from 2000 to 2019 and analyzed what is behind changes, and explored future ET trends. Climate variation in China from 2000 to 2019 was statistically significant and had a remarkable impact on ET. Average annual ET increased at a rate of 5.3746 mm yr−1 (P < 0.01) during the study period. The main drivers of the trend are increasing precipitation and wind speed. The increase in ET can also be explained to some extent by increasing temperature, decreasing sunshine duration and relative humidity. The zonation results show that the increase in temperature, wind speed, and precipitation and the decrease in relative humidity had large and positive effects on ET growth, and the decrease in sunshine duration had either promoting or inhibiting effects in different agricultural regions. Pixel-based variations in ET exhibited an overall increasing trend and obvious spatial volatility. The Hurst exponent indicates that the future trend of ET in China is characterized by significant anti-persistence, with widely distributed areas expected to experience a decline in ET. These findings improve the understanding of the role of climate variability in hydrological processes, and the ET variability in question will ultimately affect the climate system.

Science of The Total Environment, Volume 825, 15 June 2022, 153880

Abstract

Since the COVID-19 outbreak in early 2020, face mask (FM) has been recognized as an effective measure to reduce the infection, increasing its consumption across the world. However, the large amount of at-home FM usage changed traditional medical waste management practices, lack of improper management. Currently, few studies estimate FM consumption at a global scale, not to say a comprehensive investigation on the environmental risks of FM from a life cycle perspective. Therefore, global FM consumption and its associated environmental risks are clarified in the present study. Our result shows that 449.5 billion FMs were consumed from January 2020 to March 2021, with an average of 59.4 FMs per person worldwide. This review also provides a basis to understand the environmental risk of randomly disposed of FM and highlights the urgent requirement for the attention of FMs waste management to prevent pollution in the near future.

Science of The Total Environment, Volume 825, 15 June 2022, 154090

Abstract

Currently, China's environmental pollution control investment and R&D investment have increased at a remarkable speed, exceeding the GDP growth rate. Against this background, determining the impact of different orientations of R&D investment on green total-factor productivity (GTFP) is essential for overcoming the dual dilemma of resource depletion and environmental degradation. By applying the perpetual inventory method (PIM), meta-frontier DEA method and mediation effect test methods, this paper empirically tests the effects and mechanisms of environmentally induced R&D (ER&D) and traditional R&D (TR&D) on promoting GTFP during 2004–2019 in China at the provincial level. The results show that (1) ER&D investment has significantly promoted the growth of GTFP, while TR&D's promoting effects on GTFP are not significant; (2) ER&D promotes the growth of GTFP through the three channels of emission reduction, clean energy consumption, and green technology progress; and (3) from the perspective of regional heterogeneity, ER&D's promoting effects on GTFP in the eastern provinces are higher than the central and western provinces, and the promoting effects in the northern provinces are higher than in the southern provinces. From the perspective of pollution degree heterogeneity, ER&D's promotion of GTFP shows an inverted U-shaped characteristic as the pollution level increases. This means that, in the process of China's environmental governance, it is necessary to increase ER&D investment and guide green innovation to serve pollution control to achieve sustainable and high-quality economic development.

Science of The Total Environment, Volume 825, 15 June 2022, 154052

Abstract

Food waste (FW) is a primary constituent of solid waste and its adequate management is a global challenge. Instead of disposal in landfills, integrated treatment of FW with wastewater (WW) can diminish both environmental and economic burdens. Utilizing steady-state modelling and life cycle assessment techniques, this study investigated the prospects of FW integration with biological WW treatment in terms of WW treatment performance, net energy and carbon footprint and economics of the process. The explored scenarios include co-disposal and treatment with WW by using FW disposers and anaerobic co-digestion with sewage sludge in Hong Kong. Compared to the existing WW and FW treatment, the integrated scenarios significantly improved the energy balance (~83–126%), net greenhouse gas emissions (~90%), and economics of operation, with permissible impact on WW treatment performance. Therefore, utilizing the surplus capacity of the existing WW treatment facilities, these integrated scenarios are a promising solution for sustainable development.

Science of The Total Environment, Volume 826, 20 June 2022, 154191

Abstract

2-fluoro-deschloroketamine (FDCK) is a ketamine (KET) analog and new psychoactive substance that has appeared on the drug market in Europe and China in the past few years. The substance has been recently listed as a controlled drug by the narcotics control authority of China. In this work, FDCK and its metabolite nor-fluoro-deschloroketmaine (N-FDCK) in wastewater were analyzed for the first time to monitor FDCK abuse in a southern Chinese province that used to be a major producer and consumer of ketamine. For comparison, KET and its metabolite, nor-ketamine (N-KET) were monitored simultaneously. The concentration ratios between FDCK and N-FDCK were not statistically different from those of KET and N-KET. The average FDCK loads in the province in 2019 were higher than KET loads in most major cities in China in 2014 (when KET abuse hit its peak in the country). Rough estimation of FDCK and KET consumption revealed that FDCK was the predominant synthetic drug in the province in 2019, indicating rapid spread of the substance since its first appearance on the market. FDCK consumption decreased dramatically in 2020 and 2021, due to proactive actions by the local drug police before its listing as a controlled drug. Despite the dramatic decrease, FDCK was still the drug with greatest consumption by 2021, indicating that this substance persisted on the market even in the presence of forceful law enforcement. This finding also demonstrates that this substance may indeed have similar or even improved psychoactive effects relative to KET. Quick spread and persistence of FDCK demonstrated here indicates the urgent need to conduct wastewater-based monitoring of the abuse of the substance in other Chinese provinces and other countries.

Journal of Cleaner Production, Volume 351, 1 June 2022, 131391

Abstract

Firms from various industries are investing in carbon capture and utilization (CCU) technologies as part of their circular economy efforts. Hence, managers and policy makers need to develop strategies to create value and "win” sustainability transformations. This study investigates how CCU innovations are connected to economic progress at the firm and industry levels. First, we characterize economic progress from sustainability innovations as a spectrum of combinations of transformation and growth targets, and derive a configurational perspective for such innovations. Consequently, through an empirical study based on 25 in-depth expert interviews with corporate innovation managers, triangulated via additional quantitative and qualitative data, we investigate the causal configurations of R&D activities in CCU that are expected to lead to economic progress, using a fuzzy set qualitative comparative analysis. Our results show a hierarchy of transformation strategies based on investments and value creation which may support policy makers in deciding on appropriate support mechanisms. To enable the emergence of more profitable CCU solutions and facilitate their commercialization, regulators should adapt existing policies to accommodate CCU and consider developing an integrated policy framework. Moreover, managers across industry should develop adaptive strategies for achieving value creation and progress from CCU within changing environments.

Journal of Cleaner Production, Volume 352, 10 June 2022, 131472

Abstract

Sustainable development emphasizes the sustainability of natural resources and the environment. Under the background of resource scarcity and environmental constraints, it is of great significance to explore the impacts of the ecological footprint on the resource-rich but unbalanced China's Yangtze River Economic Belt from two perspectives of flow capital occupation and stock capital occupation. This study uses a fixed-effect regression model to investigate the impacts of ecological footprint breadth and depth on sustainable development by the panel data of 108 prefecture-level cities in China's Yangtze River Economic Belt from 2006 to 2018. Further combining the panel threshold regression model results, we identify ecological footprint breadth and depth as having inverted N-shaped and inverted U-shaped relationships with sustainable development. Firstly, there is a double threshold effect between ecological footprint breadth and sustainable development. Then, there is a single threshold effect between ecological footprint depth and sustainable development. When ecological footprint breadth is within the threshold of (0.2802, 0.7997), it is conducive to sustainable development. When ecological footprint depth is less than 2.5404, it is conducive to sustainable development. Secondly, ecological footprint breadth improves sustainable development of the Yangtze River Economic Belt by rationalizing and advancing industrial structure. Ecological footprint depth achieves sustainable development through rationalizing industrial structure. Thirdly, the mechanism of the ecological footprint on sustainable development has regional heterogeneity. Finally, this paper proposes several policy implications for achieving China's sustainable development.

Journal of Cleaner Production, Volume 354, 20 June 2022, 131691

Abstract

Increasing demand for land-based climate mitigation requires more efficient management of agricultural landscapes for competing objectives. Here we develop methods for assessing trade-offs and synergies between intensification and carbon-sequestering conservation measures in annual crop production landscapes using the DayCent ecosystem model and the Greenhouse Gases, Regulated Emissions, and Energy Use in Technologies (GREET) life-cycle assessment (LCA) model. We compiled county-scaled crop yields, fertilizer application rates, and tillage intensity for a corn–soybean farming case study landscape in the US state of Iowa. Using DayCent, we estimated a baseline soil organic carbon (SOC) accrual rate of 0.29 Mg C ha−1 y−1 driven by historical increases in crop productivity and reductions in tillage intensity. We then simulated the effects of management interventions targeted toward intensification (stover removal) and SOC sequestration (tillage intensity reduction and winter cover crop addition) individually and in combination. We propose a new multi-product landscape–LCA approach that analyzes marginal changes in corn grain, corn stover, and soybean production from the landscape in terms of their value for biofuel production (corn ethanol, soy biodiesel, and cellulosic ethanol from stover) and associated net displacement of conventional fossil-derived fuel use. This enables us to evaluate both intensification and sequestration effects in common CO2-equivalent mitigation units. We also used DayCent-simulated yields under the different land management scenarios to estimate farm-level costs and revenues. Our results show that intensification via collecting 30% of corn stover for biofuel production would increase the total greenhouse gas (GHG) mitigation potential of this landscape by 0.93 Mg CO2e ha−1 y−1 and provide $49 ha−1 y−1 of additional net revenue from biomass sales, but would reduce the baseline SOC accumulation rate by approximately 40%. In contrast, integrated approaches that include co-adoption of winter cover cropping and/or tillage intensity reduction would result in increased rates of SOC accumulation above the baseline, achieving simultaneous improvements in both farm profits and the overall GHG mitigation potential of the landscape.

Journal of Cleaner Production, Volume 355, 25 June 2022, 131796

Abstract

A rapid decarbonization of the electricity system is urgently required for the Paris Agreement objectives to stand a reasonable chance of being met. While state-owned power companies (SPCs) are the dominant firm type in the global electricity sector, representing nearly two thirds of global electric power generation capacity, most climate policy literature focuses on private sector companies when analyzing decarbonization interventions. SPCs’ distinct corporate governance structures, objectives, relationships with government, and sources of finance, however, can be markedly different from those of private companies. Here, we develop a framework for analyzing the extent to which common and divergent features of SPCs, and the markets in which they operate, affect their relationship to government interventions on decarbonization. We also consider the implications of these relationships for the effective implementation of sector-wide decarbonization strategies. We then apply this framework using a comparative case study analysis of six major SPCs, and highlight how differences in their agency, motivation, capacity, and market exposure may result in different potential responsiveness to government regulatory, policy and market interventions on decarbonization. We generalize these findings by developing four SPC archetypes and illustrate how they might respond differently to government interventions targeting decarbonization. Our analysis posits that SPCs can, under the guidance of governments pursuing ambitious climate policy, be more effective vehicles for decarbonization relative to private sector companies, particularly when they operate with a high degree of operational independence, are insulated from competitive pressures, and have the financial and technical capacity to invest in the decarbonization of their asset base. Similarly, market-wide policy interventions, such as carbon pricing mechanisms, could in practice be less effective interventions with respect to SPCs than their private counterparts when the SPC is ill-equipped to translate these incentives into decarbonization action because it is mandated to pursue supplementary objectives other than profit maximization alone. Ultimately, governments will need to step up their climate action to achieve carbon neutrality. SPCs can, and where they are major market players, must be key actors in driving decarbonization when the appropriate interventions are utilized and therefore deserve significantly more attention in the climate policy debate.

Journal of Cleaner Production, Available online 23 June 2022, 132854

Abstract

Effective waste management such as energy recovery from waste is not very successful in many cities of India. The present study is carried out in the Dhanbad city, India where all the generated wastes are managed unscientifically through open dumping. Most of the reported life cycle assessment-based studies for Indian cities have focussed on the common waste management options such as composting and recycling. This study aimed to evaluate the energy recovery potential and environmental impacts of mainly waste to energy options namely; anaerobic digestion, landfill gas to energy, mass incineration and refuse derived fuel incineration based on the characteristics and composition of wastes of the study area. The selection of waste to energy options is done based on the composition of waste suitable for the respective options, thus making it helpful in reproducing the present work in other cities as well. Anaerobic digestion technology is evaluated based on the biogas generation potential of total food waste generated in the study area using laboratory-scale batch experiments. Similarly, landfill gas to energy is evaluated based on the estimated landfill gas generation (using LandGEM model) from the existing landfill of the study area. While incineration (mass and refuse derived fuel) is evaluated based on the heating value of combustible waste fractions. For the comparison of energy recovery potential and environmental impacts, six scenarios are developed. The maximum energy recovery potential of 602 kWh/tonne of dry waste is found for the scenario mass incineration of combustible waste fractions (72%) and landfilling of remaining wastes (28%). This scenario also showed the maximum net environmental savings due to avoided electricity production. The sensitivity analysis revealed that the collection efficiency of generated landfill gas for electricity conversion significantly impacts the change in global warming and photochemical ozone creation potential. The outcomes of this study will help the concerned authorities in developing the efficient waste to energy system.

Energy, Volume 249, 15 June 2022, 123707

Abstract

The utilization of single-use face masks as the standard PPE to minimize the spread of the COVID-19 pandemic has resulted in increased facemask waste. Improper management of the increased facemask waste has a consequential environmental impact. This requires swift actions to invest and implement innovative technologies to manage single-use facemask waste. Thermochemical treatment of disposable face masks could minimize COVID-19 plastic waste and produce value-added products. The present study evaluates the power generation potential and environmental impact of treating estimated daily single-use facemask waste in Africa and Asia via incineration. The environmental assessment was expressed as global warming potential and acidification potential. The formulation of the model equations method was used to estimate the power generation potential. The IPCC guidelines for national greenhouse gas inventory methodology and EPA "compilation of air pollutant emissions factors” (AP-42) were used to compute greenhouse and acid gases. The key findings show that the daily single-use facemask waste produced in Asia was 19.12 million kg/day, generating 32.65 million kWh/day of electricity. In Africa, 3.53 million kg/day of single-use facemask waste was produced, generating 6.03 million kWh/day of power. The results also show Asia's total global warming potential was 787,097.6 kt CO2eq/day, and 145,687.7 kt CO2eq/day was recorded in Africa. Besides, the total daily acidification potential of the incineration process in Asia was 7,078,904 kg SO2eq/day, while that in Africa was 1,308,362 kg SO2eq/day. This study will provide scientific guidance for environmental sustainability for treating single-use facemask waste via incineration technology for power generation.

Revue Neurologique, Volume 178, Issue 6, June 2022, Pages 499-511

Abstract

Neurologists have a particular interest in SARS-CoV-2 because the nervous system is a major participant in COVID-19, both in its acute phase and in its persistent post-COVID phase. The global spread of SARS-CoV-2 infection has revealed most of the challenges and risk factors that humanity will face in the future. We review from an environmental neurology perspective some characteristics that have underpinned the pandemic. We consider the agent, SARS-CoV-2, the spread of SARS-CoV-2 as influenced by environmental factors, its impact on the brain and some containment measures on brain health. Several questions remain, including the differential clinical impact of variants, the impact of SARS-CoV-2 on sleep and wakefulness, and the neurological components of Long-COVID syndrome. We touch on the role of national leaders and public health policies that have underpinned management of the COVID-19 pandemic. Increased awareness, anticipation and preparedness are needed to address comparable future challenges.

Ecological Economics, Volume 196, June 2022, 107389

Abstract

Best Management Practices (BMPs) incentive programs have been introduced to protect agricultural land and reduce nutrient runoff in watersheds. However, their voluntary nature has not led to the expected high participation rates. We examine influencing factors and underlying drivers that are associated with BMP adoption and farmer preferences for specific BMPs. Data are collected through an online survey in Ontario, Canada in 2019. A binary logit model is estimated to explain current participation in BMP schemes and a multinomial logit model to predict preferences for future BMP uptake. Results show that a mix of farmer and farm characteristics and environmental attitudes explain both current participation in BMP schemes and the likelihood of adopting a future BMP. Farmers tend to endorse a BMP if they currently implement that BMP. The findings furthermore suggest that increasing farmers' environmental awareness and sharing positive BMP experiences with other farmers may help expand future BMP adoption in Ontario.

International Journal of Research in Marketing, Volume 39, Issue 2, June 2022, Pages 583-602

Abstract

As valuable assets of corporations, governments and not-for-profit organizations, brands have attracted considerable research attention. We know a lot about how brands create knowledge in their target consumers’ minds, which leads to an attitude towards or relationship with the brand that translates into a number of favorable outcomes. The resultant brand equity is often associated with improved performance of the organization in reaching its objectives such as increasing market value. We know less about the dynamic nature of brand equity and, in particular, how it may interact with turbulence in the external environment in which the brand competes, both positively and negatively. We examine three key dimensions of brand equity—brands’ access to their target markets, perceived differentiation, and level of brand engagement with their target consumers—that influence the effect environmental turbulence has on diminishing equity or providing future opportunities for brand equity growth. Borrowing from the strategy literature, we suggest ways in which agile and resilient firms can use brand equity to resist environmental turbulence, recover from any damage that may result from it, and reinvent themselves to leverage opportunities created by a radically altered external environment. We close with a set of propositions intended to guide managers in anticipating and responding to environmental turbulence and inform and shape future research in this area.