BGS Hosted Metadata
Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024
[This dataset is embargoed until April 1, 2026]. The dataset contains field measurements of atmospheric ammonia under forest canopies in the Himalayas in India, Pakistan, Nepal and Bhutan and in a tropical forest in Sri Lanka between 2022 and 2024. Monthly mean atmospheric ammonia concentrations are provided from 33 sites across the five countries. This dataset provides the first ever empirical measurements of ammonia from South Asian forests and can be used to estimate ecological impact, inform policy decisions, validate atmospheric chemistry transport models and satellite data and design future air quality and ecological monitoring in the region. The ammonia concentration data was collected monthly by deploying passive citric acid-coated samplers at the study locations. Full details about this dataset can be found at https://doi.org/10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
Simple
- Date (Publication)
- 2025-04-03
- Citation identifier
- https://catalogue.ceh.ac.uk/id/9c4aee69-3693-4f18-97c8-ff740045f3de
- Citation identifier
- doi: / 10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
- Other citation details
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Deshpande, A., Ellis, C., Pradhan, S.P., Sharma, S., Asad, S.A., Tshering, D., Wangchuk, K., Chatterjee, S., Weerakoon, B., Nissanka, S.P., Ganguly, D., Prabhashwara, T., Duarte, F., Stephens, A., Iwanicka, A., Sutton, M.A., Jones, M.R. (2025). Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024. NERC EDS Environmental Information Data Centre 10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
- Point of contact
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Organisation name Individual name Electronic mail address Role UK Centre for Ecology & Hydrology Deshpande, A. Author Royal Botanic Garden Edinburgh Ellis, C.
Author UK Centre for Ecology & Hydrology Pradhan, S.P.
Author Kathmandu University, Nepal Sharma, S.
Author COMSATS University, Pakistan
Asad, S.A.
Author Sherubtse College, Bhutan Tshering, D.
Author Sherubtse College, Bhutan Wangchuk, K.
Author The Nature Conservancy, India
Chatterjee, S.
Author University of Peradeniya Weerakoon, B.
Author University of Peradeniya Nissanka, S.P.
Author National Centre for Sustainable Coastal Management, India
Ganguly, D.
Author Dilmah Conservation
Prabhashwara, T.
Author UK Centre for Ecology & Hydrology Duarte, F.
Author UK Centre for Ecology & Hydrology Stephens, A.
Author UK Centre for Ecology & Hydrology Iwanicka, A.
Author UK Centre for Ecology & Hydrology Sutton, M.A.
Author UK Centre for Ecology & Hydrology Jones, M.R.
Author NERC EDS Environmental Information Data Centre Custodian NERC EDS Environmental Information Data Centre Publisher UK Centre for Ecology & Hydrology Owner UK Centre for Ecology & Hydrology Deshpande, A.G. Point of contact
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GEMET - Concepts, version 4.1.3
- Keywords
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- Environmental survey
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South Asia
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Himalaya
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passive sampling
- Access constraints
- Other restrictions
- Other constraints
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Embargoed
- Use constraints
- Other restrictions
- Use constraints
- Other restrictions
- Other constraints
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If you reuse this data, you should cite: Deshpande, A., Ellis, C., Pradhan, S.P., Sharma, S., Asad, S.A., Tshering, D., Wangchuk, K., Chatterjee, S., Weerakoon, B., Nissanka, S.P., Ganguly, D., Prabhashwara, T., Duarte, F., Stephens, A., Iwanicka, A., Sutton, M.A., Jones, M.R. (2025). Ammonia concentrations from high-elevation Himalayan forests and a Sri Lankan tropical forest, 2022-2024. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/9c4aee69-3693-4f18-97c8-ff740045f3de
- Spatial representation type
- Text, table
- Language
- English
- Character set
- UTF8
- Topic category
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- Environment
- Climatology, meteorology, atmosphere
- Begin date
- 2022-01-01
- End date
- 2024-12-31
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- Unique resource identifier
- WGS 84
- Distribution format
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Name Version Comma-separated values (CSV)
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Statement
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Starting May 2022, triplicate sets of UKCEH Adapted Low-cost Passive High Absorption (ALPHA®) samplers were deployed under the forest canopy at sites buffered by at least 500 m of continuous forest on all sides. The exposed samplers were replaced with fresh ones at the end of each month. The exposed samplers from India, Nepal, Bhutan and Sri Lanka were analysed at the National Centre for Sustainable Coastal Management, Chennai and samplers from Pakistan were analysed at UKCEH, Edinburgh using the salicylate method. Blank samplers for each period were also analysed. The analysis provides the concentration of ammonium ions absorbed by each sampler. This is further converted to atmospheric ammonia concentration using an uptake rate which determined annually in the UK by co-locating the ALPHA samplers with UKCEH DEnuder for Long-Term Atmospheric sampling (DELTA®) samplers at multiple UK sites. The monthly concentration at each site is calculated as the average of the concentration measured by each sampler in the triplicate set. Obvious outliers are removed before calculating the average. Further quality assurance is performed based on comments from site operators regarding physical damage to the sampler, wet sampler, etc.
Metadata
- File identifier
- 9c4aee69-3693-4f18-97c8-ff740045f3de XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
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dataset
- Date stamp
- 2025-11-13T16:12:51
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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