Inter-annual Variation of Ambient Ammonia and Related Trace Gases in Delhi, India
Sign Up to like & getrecommendations! Published in 2017 at "Bulletin of Environmental Contamination and Toxicology"
DOI: 10.1007/s00128-017-2058-x
Abstract: In this study, ambient NH3, NO, NO2, CO and SO2 were measured continuously from February, 2008, to December, 2016. The annual average mixing ratios (mole/mole) of NH3, NO, NO2, CO and SO2 were 17.8 ± 3.4 ppb; 21.2 ± 2.3 ppb,… read more here.
Keywords: annual variation; trace gases; ambient; nh3 no2 ... See more keywords
Seasonal cycles in baseline mixing ratios of a large number of trace gases at the Mace Head, Ireland atmospheric research station
Sign Up to like & getrecommendations! Published in 2020 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2020.117531
Abstract: Abstract A flexible approach for quantifying average long-term changes and seasonal cycles has been applied to the baseline mixing ratios of thirty-two trace gases monitored at the Atmospheric Research Station located at Mace Head, Ireland… read more here.
Keywords: atmospheric research; baseline mixing; trace gases; mixing ratios ... See more keywords
Association of aerosols, trace gases and black carbon with mortality in an urban pollution hotspot over central Indo-Gangetic Plain
Sign Up to like & getrecommendations! Published in 2021 at "Atmospheric Environment"
DOI: 10.1016/j.atmosenv.2020.118088
Abstract: Abstract The short term effect of multiple air pollutants e.g. aerosols (black carbon, BC; PM2.5 and PM10) and trace gases (NO2, SO2, and O3) on all-cause mortality was systematically investigated in a typical urban pollution… read more here.
Keywords: black carbon; trace gases; mortality; effect ... See more keywords
Hollow Waveguide Multipass Cavity Enhanced Raman Spectroscopy for Trace Gases Sensing.
Sign Up to like & getrecommendations! Published in 2025 at "Analytical chemistry"
DOI: 10.1021/acs.analchem.5c04087
Abstract: We report a hollow waveguide multipass cavity (HMC) for enhancing the Raman signal of trace gases. Raman signal collection is improved by a hollow waveguide coated with a multilayer dielectric film on the inner surface.… read more here.
Keywords: spectroscopy; trace gases; enhanced raman; multipass cavity ... See more keywords
Sensitive spectroscopic breath analysis by water condensation.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of breath research"
DOI: 10.1088/1752-7163/aad207
Abstract: Breath analysis has great potential for becoming an important clinical diagnosis method due to its friendly and non-invasive way of sample collection. Hundreds of endogenous trace gases (volatile organic compounds (VOCs)) are present in breath,… read more here.
Keywords: breath; water; sensitive spectroscopic; trace gases ... See more keywords
On-Chip Detection of Trace Gases Using Photonic Matched Filters
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Lightwave Technology"
DOI: 10.1109/jlt.2019.2894035
Abstract: This theoretical modeling and simulation the design and projected performance of an on-chip detector of trace gases using photonic matched filters, with operation in the 3–5-μm mid-infrared range. The thermo-optically tuned multi-Sagnac loop Mach–Zehnder interferometer… read more here.
Keywords: matched filters; trace gases; using photonic; photonic matched ... See more keywords
Unsupervised Sparse Unmixing of Atmospheric Trace Gases From Hyperspectral Satellite Data
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2022.3141551
Abstract: In this letter, a new approach for the retrieval of the vertical column concentrations of trace gases from hyperspectral satellite observations is proposed. The main idea is to perform a linear spectral unmixing by estimating… read more here.
Keywords: trace gases; gases hyperspectral; unsupervised sparse; sparse unmixing ... See more keywords
Tropospheric NO2 Pollution Monitoring with the GF-5 Satellite Environmental Trace Gases Monitoring Instrument over the North China Plain during Winter 2018–2019
Sign Up to like & getrecommendations! Published in 2021 at "Atmosphere"
DOI: 10.3390/atmos12030398
Abstract: The Environmental Trace Gases Monitoring Instrument (EMI) is a high-spectral-resolution payload onboard the latest pathfinder mission GaoFen-5, designed specifically for the monitoring of global atmospheric trace gas compositions and trends This study describes a comparative… read more here.
Keywords: gases monitoring; monitoring instrument; trace gases; trace ... See more keywords
Surface distributions and vertical profiles of trace gases (CO, O3, NO, NO2) in the Arctic wintertime boundary layer using low-cost sensors during ALPACA-2022
Sign Up to like & getrecommendations! Published in 2025 at "Atmospheric Measurement Techniques"
DOI: 10.5194/amt-18-1163-2025
Abstract: Abstract. Electrochemical gas sensors (EGSs) have been used to measure the surface distributions and vertical profiles of trace gases in the wintertime Arctic boundary layer during the Alaskan Layered Pollution and Chemical Analysis (ALPACA) field… read more here.
Keywords: layer; trace gases; surface distributions; reference ... See more keywords