OOIR: Observatory of International Research

Papers

(The H4-Index of Frontiers of Environmental Science & Engineering is 31. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-08-01 to 2025-08-01.)

Article	Citations
NiB2O4 (B = Mn or Co) catalysts for NH3-SCR of NOx at low-temperature in microwave field	99
Understanding the role of nano-TiO2 on the toxicity of Pb on C. dubia through modeling—Is it additive or synergistic?	74
Relationship between groundwater cadmium and vicinity resident urine cadmium levels in the non-ferrous metal smelting area, China	69
Mitigating microbiological risks of potential pathogens carrying antibiotic resistance genes and virulence factors in receiving rivers: Benefits of wastewater treatment plant upgrade	68
Emergence of gasoline as a cheap and effective solvent for recycling shelf-stable multi-layer aseptic cartons	68
Photoaging mechanism of microplastics: a perspective on the effect of dissolved organic matter in natural water	61
Effects of iron-oxidizing bacteria and humic acid of various molecular weights on iron corrosion in drinking water distribution systems	61
Enrichment and transfer of polycyclic aromatic hydrocarbons (PAHs) through dust aerosol generation from soil to the air	57
Recent advances in microplastics research: impacts on mammalian sperm and reproductive health	56
Insights into the changes of amino acids, microbial community, and enzymatic activities related with the nutrient quality of product during the composting of food waste	56
Distribution, characteristics and daily fluctuations of microplastics throughout wastewater treatment plants with mixed domestic—industrial influents in Wuxi City, China	54
A novel deep learning framework with variational auto-encoder for indoor air quality prediction	52
Analysis of the spatiotemporal evolution and drivers of environmental inequality based on well-being equity: evidence from Western China	51
Elucidate long-term changes of ozone in Shanghai based on an integrated machine learning method	51
Leveraging 3D printing in microbial electrochemistry research: current progress and future opportunities	46
Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution	46
A critical review of antibiotic resistance genes transmission driven by non-antibiotic pollutants: roles and molecular mechanisms	46
Appraisal of pollution and health risks associated with coal mine contaminated soil using multimodal statistical and Fuzzy-TOPSIS approaches	44
Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential, dissolved organic nitrogen and microbial community	43
Spatial prediction of soil contamination based on machine learning: a review	42
Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey	40
Enhancing the efficiency of nitrogen removing bacterial population to a wide range of C:N ratio (1.5:1 to 14:1) for simultaneous C & N removal	39
An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor	37
Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles of Fe dissolution	35
Conductive and stable polyphenylene/CNT composite membrane for electrically enhanced membrane fouling mitigation	34

Nonlinear relationship between air pollution and precursor emissions in Qingdao, eastern China	33
Photo-induced surface frustrated Lewis pairs for promoted photocatalytic decomposition of perfluorooctanoic acid	33
Rapid monitoring of indoor airborne influenza and coronavirus with high air flowrate electrostatic sampling and PCR analysis	32
Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration membranes via electron beam irradiation	32
Thermal degradation and hydrolysis depolymerization of printing ink components for plastic packaging in recycling processes: a review	31
Microbial biodegradation of plastics: Challenges, opportunities, and a critical perspective	31
Monitoring fossil fuel CO2 emissions from co-emitted NO2 observed from space: progress, challenges, and future perspectives	31