Bigyan Neupane

Bigyan Neupane
South China Normal University · School of Geography

PhD. Physical Geography.
Combustion-generated pollutants reconstruction in lake sediments, peatlands and coastal wetlands

About

13
Publications
4,975
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176
Citations
Introduction
Research interests: Environmental Pollution, Paleoenvironment reconstruction, Black Carbon in sediments, Environmental Geochemistry, Environmental information, Combustion-derived pollutants
Additional affiliations
July 2020 - July 2021
Fudan University
Position
  • PostDoc Position
Education
September 2015 - January 2020
University of Chinese Academy of Sciences
Field of study
  • Physical Geography

Publications

Publications (13)
Article
Full-text available
The Tibetan Plateau and its surroundings, also known as the Third Pole, play an important role in the global and regional climate and hydrological cycle. Carbonaceous aerosols (CAs), including black carbon (BC) and organic carbon (OC), can directly or indirectly absorb and scatter solar radiation and change the energy balance on the Earth. CAs, alo...
Preprint
Full-text available
The Tibetan Plateau (TP) and its surroundings, known as the Third Pole, play an important role in the regional and global climate and hydrological cycle. Carbonaceous aerosols (CAs), including black carbon (BC) and organic carbon (OC), can directly/indirectly absorb and scatter solar radiation, and change the energy balance on Earth. CAs, along wit...
Article
Tibetan Plateau (TP) is an important geographical region for investigating the long-range transport of pollutants as limited emission sources exist in this region. In this study, based on analysis of 61 surface samples, we report the spatial distribution and concentrations of BC, Hg, total organic carbon (TOC) and inorganic carbon (IC) in surface s...
Article
Full-text available
At present, the glaciers in the Himalayas and the Tibetan Plateau (HTP) are retreating partly due to albedo reduction caused by deposited light-absorbing impurities such as mineral dust (MD) and black carbon (BC). Because BC also exists widely in MD from surface soil, it is necessary to further evaluate the contribution of BC from MD to the total B...
Article
Recent studies have revealed the abundance of dissolved organic matter (DOM) in snow/glaciers of the Tibetan Plateau (TP). Here, we present a comprehensive study on the chemical compositions of snowpit samples collected from widely distributed eight glaciers in the western China (six from the TP) to investigate the spatial variation of deposited at...
Article
Full-text available
Considering the effect of environmental exposure and contamination, six trace elements including arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), lead (Pb), and zinc (Zn) in scalp hair samples of cooks at Lhasa city, southern Tibetan Plateau were analyzed by inductively coupled plasma-mass spectrometry. Potential of human hair in indicating...
Article
Full-text available
Black Carbon (BC) is one of the major drivers of climate change and its measurement in different environment is crucial for better understanding of long-term trend in Himalayan-Tibetan Plateau (HTP) as climate warming has intensified in the region. We present measurement of BC concentration from six lake sediments in HTP to reconstruct historical B...
Article
Full-text available
Carcinogenic risk assessments of polycyclic aromatic hydrocarbons (PAHs) in four sites from the Central Himalayas (Bode, Lumbini, Pokhara, and Dhunche) were performed. Lifetime Average Daily Dose (LADD), Lifetime lung cancer risk (LLCR) and Incremental lifetime cancer risk (ILCR) were calculated in order to evaluate the cancer risk. PAHs levels wer...
Article
Full-text available
Snow cover plays a key role for sustaining ecology and society in mountainous regions. Light-absorbing particulates (including black carbon, organic carbon, and mineral dust) deposited on snow can reduce surface albedo and contribute to the near-worldwide melting of snow and ice. This study focused on understanding the role of black carbon and othe...
Article
Full-text available
The Tibetan Plateau (TP) is home to the largest permafrost bodies at low- and mid-latitudes, yet little is known about the distribution and variation of mercury (Hg) in frozen soil of the permafrost regions. In this study, extensive soil sampling campaigns were carried out in 23 soil pits from 12 plots in a high-altitude permafrost region of the Sh...
Article
Full-text available
Pannchkhaal Valley in Kavrepalanchowk district has been known for using heavy amount of pesticides in vegetable farms for over three decades. As the inorganic pesticides contain elements such as arsenic, cadmium, iron, aluminum, sulfates, lead, mercury and copper, they do not degrade readily and remain in the soil and water system for long time. Tr...
Article
Full-text available
The paper aims to enlighten the solid waste management of Hetauda Municipality in Makwanpur district of an area of 44.5 sq. km. The total human population of the municipality is 84,671 (CBS 2011). Out of 11 wards, 5 wards (1, 2, 3, 4 and 10) were selected for the present study. In total 50 households, 10 institutions and 10 commercial sectors were...

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Projects

Project (1)
Project
BC determination from different environmental proxies; such as lake sediments, ice cores, snow, and soil in understanding the emission, transport, and deposition mechanisms in different environmental settings.