2026 Ji-Qin Ni: Environmental Sciences Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Environmental Sciences	41	7847	7541	2781	2589	176	5238

Overview

Ji-Qin Ni is affiliated with Purdue University West Lafayette in the United States. Their research primarily spans Environmental Science, Agricultural and Biological Sciences, and Engineering, with a significant focus on Process Chemistry and Technology, Health, Toxicology and Mutagenesis, Animal Science and Zoology, Building and Construction, and Industrial and Manufacturing Engineering.

The main topics covered in their work include:

Odor and Emission Control Technologies
Anaerobic Digestion and Biogas Production
Air Quality and Health Impacts
Effects of Environmental Stressors on Livestock
Animal Behavior and Welfare Studies
Indoor Air Quality and Microbial Exposure
Composting and Vermicomposting Techniques

Ji-Qin Ni has contributed to several peer-reviewed articles, including:

"A critical review of advancement in scientific research on food animal welfare-related air pollution" (2020), published in Journal of Hazardous Materials
"Energy management for maintaining anaerobic digestion temperature in biogas plants" (2024), published in Renewable and Sustainable Energy Reviews
"New insights into concentrations, sources and transformations of NH3, NOx, SO2 and PM at a commercial manure-belt layer house" (2020), published in Environmental Pollution
"Effect of municipal sludge-based biochar produced at different pyrolysis temperatures on humification and oxytetracycline degradation of pig manure composting" (2023), published in The Science of The Total Environment
"Comparison of energy performance and environmental impacts of three corn stover-based bioenergy pathways" (2020), published in Journal of Cleaner Production

The following co-authors have frequently collaborated with Ji-Qin Ni:

Guangyin Zhen
Xinjie Tong
Lingying Zhao
Albert J. Heber
B. T. Richert

Key journals where Ji-Qin Ni has published multiple articles include:

Journal of Cleaner Production
Journal of Animal Science
Journal of Hazardous Materials
Renewable and Sustainable Energy Reviews
Environmental Pollution

Best Publications

Mechanistic Models of Ammonia Release from Liquid Manure: a Review

Jiqin Ni

379
Citations
Volatile organic compounds at swine facilities: a critical review.

Ji-Qin Ni;Wayne P. Robarge;Changhe Xiao;Albert J. Heber

172
Citations
Ammonia, hydrogen sulphide and carbon dioxide release from pig manure in under-floor deep pits.

Ji-Qin Ni;Albert J. Heber;Claude A. Diehl;Teng T. Lim

144
Citations
Effect of manure on ammonia emission from a fattening pig house with partly slatted floor

JQ Ni;Christiaan Vinckier;J Coenegrachts;Jos Hendriks

142
Citations
Ammonia Emission from a Large Mechanically-Ventilated Swine Building during Warm Weather

Ji-Qin Ni;Albert J. Heber;Teng T. Lim;Claude A. Diehl

126
Citations
Emissions of ammonia, hydrogen sulfide, and odor before, during, and after slurry removal from a deep-pit swine finisher.

Steven J. Hoff;Dwaine S. Bundy;Minda A. Nelson;Brian C. Zelle

123
Citations
AIR QUALITY AND EMISSION MEASUREMENT METHODOLOGY AT SWINE FINISHING BUILDINGS

A. J. Heber;J.–Q. Ni;B. L. Haymore;R. K. Duggirala

107
Citations
Mechanisms of Gas Releases from Swine Wastes

J.-Q. Ni;A. J. Heber;A. L. Sutton;D. T. Kelly

106
Citations
EFFECTS OF MANURE REMOVAL STRATEGIES ON ODOR AND GAS EMISSIONS FROM SWINE FINISHING

T. T. Lim;A. J. Heber;J.-Q. Ni;D. C. Kendall

105
Citations
Performance evaluation of ground source heat pump system for greenhouse heating in northern China

Lilong Chai;Chengwei Ma;Ji-Qin Ni

104
Citations
EFFECTS OF MANURE REMOVAL STRATEGIES ON ODOR AND GAS EMISSION FROM SWINE FINISHING

Teng-Teeh Lim;Albert J. Heber;Ji-Qin Ni;Dustin C. Kendall

103
Citations
Odor and gas release from anaerobic treatment lagoons for swine manure.

Teng-Teeh Lim;Albert J. Heber;Ji-Qin Ni;Alan L. Sutton

103
Citations
Characteristics of ammonia, hydrogen sulfide, carbon dioxide, and particulate matter concentrations in high-rise and manure-belt layer hen houses

Ji Qin Ni;Lilong Chai;Lide Chen;Bill W. Bogan

101
Citations
Production of carbon dioxide in a fattening pig house under field conditions. II. Release from the manure

Ji-Qin Ni;Christiaan Vinckier;Jos Hendriks;Jan Coenegrachts

96
Citations
EFFECT OF A MANURE ADDITIVE ON AMMONIA EMISSION FROM SWINE FINISHING BUILDINGS

A. J. Heber;J. Q. Ni;T. T. Lim;C. A. Diehl

90
Citations
An on-site computer system for comprehensive agricultural air quality research

Ji-Qin Ni;Albert J. Heber

83
Citations
Quality assured measurements of animal building emissions: Odor concentrations

Larry D. Jacobson;Brian P. Hetchler;David R. Schmidt;Richard E. Nicolai

77
Citations
Methane and carbon dioxide emission from two pig finishing barns.

Ji Qin Ni;Albert J. Heber;Teng Teeh Lim;Pei Chun Tao

76
Citations
AIR QUALITY MONITORING AND ON-SITE COMPUTER SYSTEM FOR LIVESTOCK AND POULTRY ENVIRONMENT STUDIES

Ji-Qin Ni;Albert J. Heber;Matthew J. Darr;Teng T. Lim

75
Citations
Characteristics of volatile fatty acids in stored dairy manure before and after anaerobic digestion

Laura H. Page;Ji-Qin Ni;Albert J. Heber;Nathan S. Mosier

75
Citations
CHARACTERISTICS AND EMISSION RATES OF ODOR FROM COMMERCIAL SWINE NURSERIES

T. T. Lim;A. J. Heber;J. Q. Ni;A. L. Sutton

74
Citations
Air Quality Measurements at a Laying Hen House: Particulate Matter Concentrations and Emissions

T. T. Lim;Albert J. Heber;Ji-Qin Ni;J. X. Gallien

69
Citations

Frequent Co-Authors

Albert J. Heber Purdue University West Lafayette

Jacek A. Koziel Iowa State University

Yuanhui Zhang University of Illinois at Urbana-Champaign

Hongwei Xin University of Tennessee at Knoxville

Joseph H. Harrison Washington State University

Shubiao Wu Aarhus University

Renjie Dong China Agricultural University

Frank M. Mitloehner University of California, Davis

B. T. Richert Purdue University West Lafayette

Charles V Maxwell University of Arkansas at Fayetteville

External Links

Personal website of Ji-Qin Ni

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