OOIR: Observatory of International Research

Papers

(The H4-Index of Frontiers of Environmental Science & Engineering is 30. 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 2021-05-01 to 2025-05-01.)

Article	Citations
NiB2O4 (B = Mn or Co) catalysts for NH3-SCR of NOx at low-temperature in microwave field	85
Understanding the role of nano-TiO2 on the toxicity of Pb on C. dubia through modeling—Is it additive or synergistic?	71
Leveraging 3D printing in microbial electrochemistry research: current progress and future opportunities	68
Relationship between groundwater cadmium and vicinity resident urine cadmium levels in the non-ferrous metal smelting area, China	61
Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential, dissolved organic nitrogen and microbial community	58
A novel deep learning framework with variational auto-encoder for indoor air quality prediction	58
Emergence of gasoline as a cheap and effective solvent for recycling shelf-stable multi-layer aseptic cartons	53
Photoaging mechanism of microplastics: a perspective on the effect of dissolved organic matter in natural water	52
Effects of iron-oxidizing bacteria and humic acid of various molecular weights on iron corrosion in drinking water distribution systems	52
Enrichment and transfer of polycyclic aromatic hydrocarbons (PAHs) through dust aerosol generation from soil to the air	50
A fast antibiotic detection method for simplified pretreatment through spectra-based machine learning	47
Recent advances in microplastics research: impacts on mammalian sperm and reproductive health	47
Elucidate long-term changes of ozone in Shanghai based on an integrated machine learning method	46
Appraisal of pollution and health risks associated with coal mine contaminated soil using multimodal statistical and Fuzzy-TOPSIS approaches	46
Mitigating microbiological risks of potential pathogens carrying antibiotic resistance genes and virulence factors in receiving rivers: Benefits of wastewater treatment plant upgrade	45
Distribution, characteristics and daily fluctuations of microplastics throughout wastewater treatment plants with mixed domestic—industrial influents in Wuxi City, China	43
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	42
Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey	42
Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution	42
Spatial prediction of soil contamination based on machine learning: a review	40
China Launched the First Wastewater Resource Recovery Factory in Yixing	40
Thermal degradation and hydrolysis depolymerization of printing ink components for plastic packaging in recycling processes: a review	37
An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor	37
Rapid monitoring of indoor airborne influenza and coronavirus with high air flowrate electrostatic sampling and PCR analysis	36
Nonlinear relationship between air pollution and precursor emissions in Qingdao, eastern China	35

Antibiotic resistome mostly relates to bacterial taxonomy along a suburban transmission chain	35
Monitoring fossil fuel CO2 emissions from co-emitted NO2 observed from space: progress, challenges, and future perspectives	35
Research progress and prospects of complete ammonia oxidizing bacteria in wastewater treatment	32
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	32
Cadmium removal mechanistic comparison of three Fe-based nanomaterials: Water-chemistry and roles of Fe dissolution	31
Conductive and stable polyphenylene/CNT composite membrane for electrically enhanced membrane fouling mitigation	30
Portable fluorescence instrument for detecting membrane integrity in membrane bioreactor (MBR)	30