1. Effect of organic loading rate on the anaerobic digestion of swine waste with biochar addition

   • Enrique Sánchez
   • Christiane Herrmann
   • Rafael Borja

   Research Article 17 March 2021 Pages: 38455 - 38465

   

2. Extracting copper and cobalt from non-ferrous residues by iron- and sulfur-oxidizing bacteria

   • Jianxing Sun
   • Wenxian Liu
   • Yuguang Wang

   Research Article 17 March 2021 Pages: 38466 - 38475

   

3. Super adsorption performance of carboxymethyl cellulose/copper oxide-nickel oxide nanocomposite toward the removal of organic and inorganic pollutants

   • Nujud Maslamani
   • Sher Bahadar Khan
   • Abdullah M. Asiri

   Research Article 17 March 2021 Pages: 38476 - 38496

   

4. Particle size distribution and pollutant dissolution characteristics of road-deposited sediment in different land-use districts: a case study of Beijing

   • Jianlong Wang
   • Meina Qin
   • Baitong Li

   Research Article 17 March 2021 Pages: 38497 - 38505

   

5. Modeling the linkages among CO₂ emission, energy consumption, and industrialization in sub-Saharan African (SSA) countries

   • Michael Appiah
   • Fanglin Li
   • Benjamin Korankye

   Research Article 18 March 2021 Pages: 38506 - 38521

   

6. Assessment of rice and wheat production efficiency based on data envelopment analysis

   • Muhammad Shoaib Aslam
   • Pan Huan Xue
   • Van Chien Nguyen

   Research Article 18 March 2021 Pages: 38522 - 38534

   

7. Research on the impact of agricultural green production on farmers’ technical efficiency: evidence from China

   • Chaoqiong Li
   • Yuxing Shi
   • Minjuan Zhao

   Research Article 18 March 2021 Pages: 38535 - 38551

   

8. Carbon footprint forecasting using time series data mining methods: the case of Turkey

   • Müge Akyol
   • Emine Uçar

   Research Article 18 March 2021 Pages: 38552 - 38562

   

9. Does the pollution haven hypothesis prevail in Turkey? Empirical evidence from nonlinear smooth transition models

   • Umit Bulut
   • Gulbahar Ucler
   • Roula Inglesi-Lotz

   Research Article 18 March 2021 Pages: 38563 - 38572

   

10. The effects of dispersal ability on metacommunity structure of macroinvertebrates in subtropical Chinese high-mountain streams: seasonal shifts in relative contribution of local environment and spatial processes

    • Xiaoming Jiang
    • Xian Xu
    • Hongtao Li

    Research Article 18 March 2021 Pages: 38573 - 38583

    

11. Change of the litter fall, decomposition, and nutrient release in cork oak forest after anthropogenic disturbances in North West of Tunisia

    • Mohamed Riadh Mahmoudi
    • Beya Bachtobji-Bouachir
    • Néziha Ghanem-Boughanmi

    Research Article 18 March 2021 Pages: 38584 - 38593

    

12. Effects of National New District on economic development and air pollution in China: empirical evidence from 69 large and medium-sized cities

    • Yanchao Feng
    • Xiaohong Wang

    Research Article 18 March 2021 Pages: 38594 - 38603

    

13. Vicia villosa Roth: a cover crop to phytoremediate arsenic polluted environments

    • Sabrina G. Ibañez
    • Claudia N. Travaglia
    • Elizabeth Agostini

    Research Article 18 March 2021 Pages: 38604 - 38612

    

14. The suitability of surface waters from small west-flowing rivers for drinking, irrigation, and aquatic life from a global biodiversity hotspot (Western Ghats, India)

    • S. Kiran Kumar Reddy
    • Harish Gupta
    • Devender Kumar

    Research Article 18 March 2021 Pages: 38613 - 38628

    

15. The first detection of SARS-CoV-2 RNA in the wastewater of Tehran, Iran

    • Mohammad Tanhaei
    • Seyed Reza Mohebbi
    • Mohammad Reza Zali

    Research Article 18 March 2021 Pages: 38629 - 38636

    

16. Bacillus subtilis Y16 and biogas slurry enhanced potassium to sodium ratio and physiology of sunflower (Helianthus annuus L.) to mitigate salt stress

    • Samina Hamid
    • Iftikhar Ahmad
    • Bo Zhu

    Research Article 18 March 2021 Pages: 38637 - 38647

    

17. Correction to: Bacillus subtilis Y16 and biogas slurry enhanced potassium to sodium ratio and physiology of sunflower (Helianthus annuus L.) to mitigate salt stress

    • Samina Hamid
    • Iftikhar Ahmad
    • Bo Zhu

    Correction 10 May 2021 Pages: 38648 - 38648

18. Research on the site selection of watershed public facilities as multi-use detention basin: an environmental efficiency perspective

    • Hsueh-Sheng Chang
    • Chun-Yin Man
    • Qingmu Su

    Research Article 18 March 2021 Pages: 38649 - 38663

    

19. Laboratory observations for two-dimensional solute transport in an aquifer-aquitard system

    • Xu Li
    • Zhang Wen
    • Qi Zhu

    Research Article 18 March 2021 Pages: 38664 - 38678

    

20. Extensions of the distributed lag non-linear model (DLNM) to account for cumulative mortality

    • Chao-Yu Guo
    • Xing-Yi Huang
    • Yi-Hau Chen

    Research Article Open access 18 March 2021 Pages: 38679 - 38688

    

21. Metals pollution from textile production wastewater in Chinese southeastern coastal area: occurrence, source identification, and associated risk assessment

    • Fang Li
    • Zhehui Zhong
    • Chenye Xu

    Research Article 18 March 2021 Pages: 38689 - 38697

    

22. Evaluation of transfer of lead in soil plant animal system: assessment of consequences of its toxicity

    • Fu Chen
    • Jing Ma
    • Mohmed Soliman Elshikh

    Research Article 18 March 2021 Pages: 38698 - 38705

    

23. Characteristics of bacterial community and ARGs profile in engineered goldfish tanks with stresses of sulfanilamide and copper

    • Benjamin Makimilua Tiimub
    • Zhen-chao Zhou
    • Hong Chen

    Research Article 19 March 2021 Pages: 38706 - 38717

    

24. Effects of TiO₂ and ZnO nanoparticles on vermicomposting of dewatered sludge: studies based on the humification and microbial profiles of vermicompost

    • Xia Hui
    • Huang Kui

    Research Article 19 March 2021 Pages: 38718 - 38729

    

25. A practical approach for the determination of environmental quality standards-based discharge limits: the case of Tersakan sub-basin of Yeşilırmak River in Turkey

    • Sarp Çelebi
    • Ulku Yetis
    • Kahraman Ünlü

    Research Article 19 March 2021 Pages: 38730 - 38748

    

26. Sanitation ladder and undernutrition among under-five children in Pakistan

    • Asfand Yar Khan
    • Kaneez Fatima
    • Muhammad Ali

    Research Article 19 March 2021 Pages: 38749 - 38763

    

27. Impact of non-renewable and renewable energy consumption on economic growth: evidence from income and regional groups of countries

    • Muhammad Asif
    • Sehrish Bashir
    • Saira Khan

    Research Article 19 March 2021 Pages: 38764 - 38773

    

28. Assessment of organochlorine pesticides and health risk in tobacco farming associated with River Barandu of Pakistan

    • Ammara Taufeeq
    • Mujtaba Baqar
    • Huang Jun

    Research Article 19 March 2021 Pages: 38774 - 38791

    

29. Dangerous connections: biochemical and behavioral traits in Daphnia magna and Daphnia longispina exposed to ecologically relevant amounts of paracetamol

    • Ana Paula Sousa
    • Bruno Nunes

    Research Article 19 March 2021 Pages: 38792 - 38808

    

30. Application of an electrochemical sensor using copper oxide nanoparticles/polyalizarin yellow R nanocomposite for hydrogen peroxide

    • Nader Amini
    • Bahaaldin Rashidzadeh
    • Seung-Mok Lee

    Research Article 19 March 2021 Pages: 38809 - 38816

    

31. Tracing the heavy metals zinc, lead and nickel in banana shrimp (Penaeus merguiensis) from the Persian Gulf and human health risk assessment

    • Mohsen Dehghani
    • Sana Sharifian
    • Moein Nabavi

    Research Article 20 March 2021 Pages: 38817 - 38828

    

32. Improved catalytic oxidation of propylene glycol methyl ether over Sm–Mn and Sm–Co perovskite-based catalysts prepared by the recycling of spent ternary lithium-ion battery

    • Jiangtian Sun
    • Lizhong Liu
    • Bing Zhou

    Research Article 20 March 2021 Pages: 38829 - 38838

    

33. Interaction of environmental eukaryotic microorganisms and fungi in the pond-cultured carps: new insights into the potential pathogenic fungi in the freshwater aquaculture

    • Aiguo Zhou
    • Shaolin Xie
    • Jixing Zou

    Research Article 20 March 2021 Pages: 38839 - 38854

    

34. Piperazine-substituted chalcones: a new class of MAO-B, AChE, and BACE-1 inhibitors for the treatment of neurological disorders

    • Bijo Mathew
    • Jong Min Oh
    • Hoon Kim

    Research Article 20 March 2021 Pages: 38855 - 38866

    

35. Study on bioleaching of heavy metals and resource potential from tannery yard sludge

    • Hang Liu
    • Kaizhi Yang
    • Wan Liang

    Research Article 20 March 2021 Pages: 38867 - 38879

    

36. Comparative assessment of drought monitoring index susceptibility using geospatial techniques

    • Hui Yue
    • Ying Liu
    • Jiaxin Qian

    Research Article 20 March 2021 Pages: 38880 - 38900

    

37. Analysis of CO₂ emissions and energy consumption by sources in MENA countries: evidence from quantile regressions

    • Majed Alharthi
    • Eyup Dogan
    • Dilvin Taskin

    Research Article 20 March 2021 Pages: 38901 - 38908

38. Regional difference decomposition and its spatiotemporal dynamic evolution of Chinese agricultural carbon emission: considering carbon sink effect

    • Yu Cui
    • Sufyan Ullah Khan
    • Minjuan Zhao

    Research Article 20 March 2021 Pages: 38909 - 38928

    

39. Convergence analysis of regional marginal abatement cost of carbon dioxide in China based on spatial panel data models

    • Zhaoquan Xue
    • Nan Li
    • Jingru Pang

    Research Article 20 March 2021 Pages: 38929 - 38946

    

40. Thermo-mechanical properties and sustainability analysis of newly developed eco-friendly structural foamed concrete by reusing palm oil fuel ash and eggshell powder as supplementary cementitious materials

    • Ashfaque Ahmed Jhatial
    • Wan Inn Goh
    • Sufian Kamaruddin

    Research Article 20 March 2021 Pages: 38947 - 38968

    

41. Can CO₂ emissions and energy consumption determine the economic performance of South Korea? A time series analysis

    • Tomiwa Sunday Adebayo
    • Abraham Ayobamiji Awosusi
    • Madhy Nyota Mwamba

    Research Article 20 March 2021 Pages: 38969 - 38984

    

42. Mechanism and multi-step kinetic modelling of Cr(VI) adsorption, reduction and complexation by humic acid, humin and kerogen from different sources

    • Samuel Barnie
    • Jia Zhang
    • Honghan Chen

    Research Article 20 March 2021 Pages: 38985 - 39000

    

43. Per- and polyfluoroalkyl substances (PFASs) in Swedish household dust and exposure of pet cats

    • Jana M. Weiss
    • Bernt Jones
    • Marja H. Lamoree

    Research Article Open access 20 March 2021 Pages: 39001 - 39013

    

44. A cleaner approach to tanning process of cattle hide upper suede leather: chrome-less polycarboxylate/montmorillonite nanocomposites as tanning agent

    • Jianzhong Ma
    • Na Yang
    • Jing Zhang

    Research Article 20 March 2021 Pages: 39014 - 39025

    

45. Exposure of tilapia (Oreochromis niloticus) to the antibiotic florfenicol in water: determination of the bioconcentration factor and the withdrawal period

    • Letícia Sayuri Shiroma
    • Carla Beatriz Grespan Bottoli
    • Sonia C. N. Queiroz

    Research Article 20 March 2021 Pages: 39026 - 39034

    

46. Matlodextrin-cinnamon essential oil nanoformulation as a potent protective against titanium nanoparticles-induced oxidative stress, genotoxicity, and reproductive disturbances in male mice

    • Asmaa S. Salman
    • Turki M. Al-Shaikh
    • Mosaad A. Abdel-Wahhab

    Research Article 20 March 2021 Pages: 39035 - 39051

    

47. Threshold effects of capital investments on carbon emissions in G20 economies

    • Kazeem Bello Ajide
    • Ridwan Lanre Ibrahim

    Research Article 21 March 2021 Pages: 39052 - 39070

    

48. Cyclic utilization of reed litters to enhance nitrogen removal efficiency in simulated estuarine wetland

    • Yanan Wang
    • Xijun Cui
    • Shengbing He

    Research Article 21 March 2021 Pages: 39071 - 39081

    

49. RETRACTED ARTICLE: Nutrient mass balance of a large riverine reservoir in the context of water residence time variability

    • Farshad Shafiei

    Research Article 21 March 2021 Pages: 39082 - 39100

    

50. Maternal exposure to sulfur dioxide and the risk of oral clefts in Liaoning Province, China: a population-based case-control study

    • Fang-Hua Liu
    • Ze Xing
    • Qi-Jun Wu

    Research Article 21 March 2021 Pages: 39101 - 39109