Rejina Maskey Byanju, PhD

Rejina Maskey Byanju, PhD


Academic Qualification: PhD in Chemistry (Air Pollution), Institute of Science and Technology, Tribhuvan University, NEPAL

Research Interests: Air Pollution, Environmental Pollutions, Environmental Assessments, Waste management

Teaching Courses: 

Air Pollution, Atmospheric Science, Environmental Chemistry, Environmental Pollutions (Air, water, soil), Solid Waste Management, Environmental Assessments


Email: rmaskey at at; Phone: +977-9841359172


International Journal Articles
  1. Pant, R.R., Bishwakarma, K., Rehman Qaiser, F.U., Pathak, L., Jayaswal, G., Sapkota, B., Pal, K.B., Thapa, L.B., Koirala, M., Rijal, K., & Maskey, R. (2021). Imprints of COVID-19 lockdown on the surface water quality of Bagmati river basin, Nepal. Journal of Environmental Management, (289) 112522.
  2. Das, B., Bhave, P.V., Puppala, S.P., Shakya, K., Maharjan, B., & Byanju, R.M. (2020). A model-ready emission inventory for crop residue open burning in the context of Nepal. Environment Pollution, 266 (3), 115069.
  3. Khadgi, J., Thapa, R., Joshi, T.P., & Byanju, R.M. (2020). Effectiveness of vehicle‑free zone in reducing air pollution, International Journal of Environmental Science and Technology, Springer doi 10.1007/s13762-020-02977-6.
  4. Bhujel, K.B., Byanju, R.M., Gautam, A.P., Sapkota, R.P., &  Khadka, U.R. (2020) Fire‑induced carbon emissions from tropical mixed broad‑leaved forests of the Terai–Siwalik region, central Nepal. Journal of Forestry Research, doi 10.1007/s11676-020-01256-x.
  5. Thakuri, S., Baskota, P., Khatri, S.B., Dhakal, A., Chaudhary, P., Rijal, K., & Byanju, R.M. (2020). Methane emission factors and carbon fluxes from enteric fermentation in cattle of Nepal Himalaya. Science of Total Environment, 746, 141184, doi 10.1016/j.scitotenv.2020.141184 0048-9697.
  6. Mool, E., Bhave, P.V., Khanal, N., Byanju, R.M., Adhikari, S., Das, B., & Puppala, S.P. (2019). Traffic Condition and Emission Factor from Diesel Vehicles within the Kathmandu Valley. Aerosol and Air Quality Research, 20(3), 395-409.
  7. Das, B., Bhave, P.V., Sapkota, A., & Byanju, R.M. (2018). Estimating emissions from open burning of municipal solid waste in municipalities of Nepal. Waste Management, 79, 481–490.
  8. Bhujel, K.B., Byanju, R.M., Gautam, A.P., & Mandal, R.A. (2018). Wildfire dynamics and occasional precipitation during active fire season in tropical lowland of Nepal. Environment and Natural Resources Journal, 16(1), 1-8. 
  9. Shakya, K.M., Peltier, R.E., Shrestha, H., & Byanju, R.M. (2017). Measurements of TSP, PM10, PM2.5, BC, and PM chemical composition from an urban residential location in Nepal. Atmospheric Pollution Research, 8(6), 1123-1131.
  10. Kiros, F., Shakya, K.M., Rupakheti, M., Regmi, R.P., Maharjan, R., Byanju, R.M., Naja, M., Mahata, K., Kathayat, B., & Peltier, R.E. (2015). Variability of anthropogenic gases: nitrogen oxides, sulfur dioxide, ozone and ammonia in Kathmandu Valley, Nepal. Aerosol and Air Quality Research, (16), 3088–3101. 
  11. Byanju, R.M., Gewali, M.B., & Manandhar, K. (2012). Passive sampling of ambient nitrogen dioxide using local tubes. Journal of Environmental Protection, 3, 135-239.    
  12. Byanju, R.M., Gewali, M.B., Manandhar, K., Pradhan, B.B, Dangol, P., & Ferm, M. (2012). Urban air quality assessment of Kathmandu by passive sampling technique. Journal of Environmental Science and Engineering A, 1(4), 467-483.
National Journal Articles
  1. Das, B., Bhave, P.V., Puppala, S.P., & Rejina, M.B. (2018). A global perspective of vehicular emission control policy and practices: an interface with Kathmandu Valley case, Nepal. Journal of Institute of Science and Technology, 23, 76-80.
  2. Bhujel, K.B., Byanju, R.M., & Gautam, A.P. (2018), Wildfire dynamics and its effects on the forest resources and public property in Nepal. Journal of Institute of Science and Technology, 23, 61-68.
  3. Bhujel, K.B., Byanju, R.M., & Gautam, A.P. (2017). Wildfire dynamics in Nepal from 2000-2016.  Nepal Journal of Environmental Science, 5, 1-8.  
  4. Bhujel, K.B., Byanju, R.M., Gautam, A.P., & Mandal, R.A. (2017). Effect of climatic variables on fire incidence and burnt area in tropical forests in Nepal. E-planet, 15(1), 21-28.
  5. Dhital, N.B., Sapkota, R.P., & Byanju, R.M. (2015). Impact of forest cutting and pruning activities on tree species diversity, regeneration and forest structural complexity. Journal of Environmental Sciences, 1, 17-33.
  6. Shrestha, J., Byanju, R.M., & Paudel, R. (2015). Effect of biochar and ash amendment on soil quality and crop productivity. Journal of Environmental Sciences, 1, 134-146.
  7. Dhital, N.B., Hung, W.T., & Byanju, R.M. (2015). Air pollution inside public transport vehicles of Kathmandu Valley. Journal of Environmental Science, 2(1), 35-41.
  8. Gautam, B., Byanju, R.M., Sapkota, R., & Dangol, D. (2014) Aquatic micro-invertebrates as bioindicators: an approach for wetland Water quality assessment of Rampur Ghol, Chitawan, Nepal. Journal of Institute of Science and Technology, 19(2), 58-64.
  9. Adhikari, S., Dhital, N.B., Sapkota, R., & Byanju, R.M. (2013) Evaluation of charcoal produced by biomass charring technologies adopted in community forests of Kathmandu Valley. Journal of Institute of Science and Technology, 18(1), 127-133.
  10. Byanju, R.M., Gewali, M.B., & Manandhar, K. (2013). Low-cost passive monitoring of sulphur dioxide in ambient air. Nepal Journal of Environmental Science, 1(1), 21-26. 
  11. Byanju, R.M., Gewali, M.B., & Manandhar, K. (2011). Low-cost passive monitoring of nitrogen dioxide and sulphur dioxide in ambient air. Journal of Nepal Chemical Society, 27(1), 34-45.
  12. Byanju, R.M., Surrasac, U., & Tippawan, P. (2001). Spectrophotometric determination of paraquat in the portable and surface water using C18- bonded silica cartridges. Journal of Nepal Chemical Society, 20, 
Edited Books/Chapters
  1. Byanju, R.M. (2012) Biogas: Option for Mitigating and Adaptation of Climate Change.  LAMBERT Academic Publishing, GmbH and Co kG, 2012; ISBN: 978-3-8473-3607-5.
  2. Rapid Urban Assessment of Air Quality for Kathmandu, Nepal, 2012, ICIMOD, ISBN: 978 92 9115 267 4 (printed) 978 92 9115 268 1 (electronic) LCCN 2012-323210
  3. Shah, D.N.Byanju, R.M., Bhuju, D.R., Subedi, R., & Pokharel, A. (2020). Transboundary Water Governance, Training Manual- Mahakali Basin. Kathmandu, Nepal. ISBN 978-9937-0-8053-8.
  4. Shah, D.N., Byanju, R.M., Bhuju, D.R., Subedi, R., & Pokharel, A. (2020). अन्तरदेशीय पानी सुशासनसमन्धी तालिमपुस्तिका (महाकाली बेसिन). Kathmandu, Nepal. ISBN 978-9937-0-8052-1
Outreach publications
  1. Byanju, R.M., & Shrestha, H. (2013). Health Care Waste: Is there no way? Scientific Outlook, August-Sept 2013, Vol 1, No. 1, pp 31-32.
  2. Byanju, R.M., Sapkota, R., & Dhital, N.B. (2013). Kathmandu Upatyakama Bau Pradushan-smchipta bibechanaan article published in Jeevan –anusandhatmak paryabaran patrika, Batabaran Bisheshanka, World Environment Day 2013, Year 14, no,27, pp 46.
  3. Byanju, R.M., & Sapkota, R. (2010). Ozone layer and its depletion Enviro-Zing for Sustainable Development. Society of Environmental Science Student (SESS).
  4. Byanju, R.M., & Sapkota, R. (2011). Hamro Sampada National Monthly year11, Issue1 2011, GON Suchana tatha Sanchar Mantralaye ka, ji, pra, darta no. 175/056/057 Arthik Kranti ra Batabaran Samranchyan.
  5. Byanju, R.M. (2008). Low-cost Passive samplers for Determination of Nitrogen dioxide and Sulfur dioxide in ambient air. The Fifth National Conference on Science and Technology, Nepal 10 -12, November 2008. 
  6. Byanju, R.M. (2000). Lead pollution in the atmosphere from automobile exhaust. Environmental Bulletin-111, 2000.