OOIR: Observatory of International Research

Papers

(The H4-Index of Frontiers of Environmental Science & Engineering is 32. 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 2021-09-01 to 2025-09-01.)

Article	Citations
NiB2O4 (B = Mn or Co) catalysts for NH3-SCR of NOx at low-temperature in microwave field	103
Understanding the role of nano-TiO2 on the toxicity of Pb on C. dubia through modeling—Is it additive or synergistic?	76
Relationship between groundwater cadmium and vicinity resident urine cadmium levels in the non-ferrous metal smelting area, China	70
Emergence of gasoline as a cheap and effective solvent for recycling shelf-stable multi-layer aseptic cartons	70
Mitigating microbiological risks of potential pathogens carrying antibiotic resistance genes and virulence factors in receiving rivers: Benefits of wastewater treatment plant upgrade	69
Effects of iron-oxidizing bacteria and humic acid of various molecular weights on iron corrosion in drinking water distribution systems	68
Recent advances in microplastics research: impacts on mammalian sperm and reproductive health	64
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	59
Enrichment and transfer of polycyclic aromatic hydrocarbons (PAHs) through dust aerosol generation from soil to the air	58
Adsorption of herring sperm DNA onto pine sawdust biochar: Thermodynamics and site energy distribution	57
Analysis of the spatiotemporal evolution and drivers of environmental inequality based on well-being equity: evidence from Western China	54
A critical review of antibiotic resistance genes transmission driven by non-antibiotic pollutants: roles and molecular mechanisms	53
Leveraging 3D printing in microbial electrochemistry research: current progress and future opportunities	52
A novel deep learning framework with variational auto-encoder for indoor air quality prediction	51
Elucidate long-term changes of ozone in Shanghai based on an integrated machine learning method	49
Microplastics in municipal wastewater treatment plants: a case study of Denizli/Turkey	49
Photoaging mechanism of microplastics: a perspective on the effect of dissolved organic matter in natural water	48
Comparison of different valent iron on anaerobic sludge digestion: Focusing on oxidation reduction potential, dissolved organic nitrogen and microbial community	47
Distribution, characteristics and daily fluctuations of microplastics throughout wastewater treatment plants with mixed domestic—industrial influents in Wuxi City, China	44
Appraisal of pollution and health risks associated with coal mine contaminated soil using multimodal statistical and Fuzzy-TOPSIS approaches	43
Spatial prediction of soil contamination based on machine learning: a review	41
Thermal degradation and hydrolysis depolymerization of printing ink components for plastic packaging in recycling processes: a review	40
Biocide-resistant Klebsiella quasipneumoniae in seawater cooled system: a reservoir of efflux pumps driving cross-resistance to biocides and antibiotics	37
China Launched the First Wastewater Resource Recovery Factory in Yixing	35
Rapid monitoring of indoor airborne influenza and coronavirus with high air flowrate electrostatic sampling and PCR analysis	35

Nonlinear relationship between air pollution and precursor emissions in Qingdao, eastern China	34
Removal of endocrine disrupting chemicals from water through urethane functionalization of microfiltration membranes via electron beam irradiation	34
An antibiotic composite electrode for improving the sensitivity of electrochemically active biofilm biosensor	33
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	33
Impact factors and pathways of halonitromethanes formation from aspartic acid during LED-UV265/chlorine disinfection	32
Portable fluorescence instrument for detecting membrane integrity in membrane bioreactor (MBR)	32
Conductive and stable polyphenylene/CNT composite membrane for electrically enhanced membrane fouling mitigation	32
Monitoring fossil fuel CO2 emissions from co-emitted NO2 observed from space: progress, challenges, and future perspectives	32