Results 41 to 50 of about 1,880,542 (341)

Constraints and biases in a tropospheric two-box model of OH [PDF]

open access: yesAtmospheric Chemistry and Physics, 2019
The hydroxyl radical (OH) is the main atmospheric oxidant and the primary sink of the greenhouse gas CH4. In an attempt to constrain atmospheric levels of OH, two recent studies combined a tropospheric two-box model with hemispheric-mean observations of ...
S. Naus   +9 more
doaj   +1 more source

Low-level summertime isoprene observed at a forested mountaintop site in southern China: implications for strong regional atmospheric oxidative capacity [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
To investigate the atmospheric oxidative capacity (AOC) in forested high mountain areas adjacent to the photochemistry-active Pearl River Delta (PRD) region in southern China, one-month online observations of isoprene and its oxidation products methyl
D. Gong   +17 more
doaj   +1 more source

Characteristics of school children's personal exposure to ultrafine particles in Heshan, Pearl River Delta, China – A pilot study

open access: yesEnvironment International, 2019
Background: There is a significant lack of scientific knowledge on population exposure to ultrafine particles (UFP) in China to date. This paper quantifies and characterises school children's personal UFP exposure and exposure intensity against their ...
Mandana Mazaheri   +7 more
doaj   +1 more source

Multi-Points Indoor Air Quality Monitoring Based on Internet of Things

open access: yesIEEE Access, 2021
Indoor air quality monitoring is of great importance to human health as people typically spend more than 90% of their time in indoor environments. An indoor air quality detector (IAQD) enabling measurement of CO2, PM2.5, temperature, humidity, has been ...
Zhibin Liu   +3 more
semanticscholar   +1 more source

Realtime Profiling of Fine-Grained Air Quality Index Distribution using UAV Sensing

open access: yes, 2017
Given significant air pollution problems, air quality index (AQI) monitoring has recently received increasing attention. In this paper, we design a mobile AQI monitoring system boarded on unmanned-aerial-vehicles (UAVs), called ARMS, to efficiently build
Bian, Kaigui   +4 more
core   +1 more source

Characteristics and mixing state of amine-containing particles at a rural site in the Pearl River Delta, China [PDF]

open access: yesAtmospheric Chemistry and Physics, 2018
Particulate amines play an important role for the particle acidity and hygroscopicity and also contribute to secondary organic aerosol mass. We investigated the sources and mixing states of particulate amines using a single-particle aerosol mass ...
C. Cheng   +23 more
doaj   +1 more source

Understanding Behavioral Intention to Use of Air Quality Monitoring Solutions with Emphasis on Technology Readiness

open access: yesInternational journal of human computer interactions
This study aims to investigate the determinants of Behavioral Intention to Use (BIU) within the scope of Air Quality Monitoring Solution (AQMS), with a focus on Technology Readiness (TR).
Qurotul Aini   +4 more
semanticscholar   +1 more source

New Era of Air Quality Monitoring from Space: Geostationary Environment Monitoring Spectrometer (GEMS)

open access: yesBulletin of The American Meteorological Society - (BAMS), 2020
The Geostationary Environment Monitoring Spectrometer (GEMS) is scheduled for launch in February 2020 to monitor air quality (AQ) at an unprecedented spatial and temporal resolution from a geostationary Earth orbit (GEO) for the first time.
Jhoon Kim   +80 more
semanticscholar   +1 more source

Design of a Low-Cost Air Quality Monitoring System Using Arduino and ThingSpeak

open access: yesComputers Materials & Continua, 2022
The impact of daily emissions of gaseous and particulate pollutants of machines and industries on human health and the environment has attracted increasing concerns.
A. Kelechi   +7 more
semanticscholar   +1 more source

Monitoring the impact of desert dust outbreaks for air quality for health studies [PDF]

open access: yes, 2019
We review the major features of desert dust outbreaks that are relevant to the assessment of dust impacts upon human health. Our ultimate goal is to provide scientific guidance for the acquisition of relevant population exposure information for ...
Alastuey, A.   +11 more
core   +2 more sources

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