Results 61 to 70 of about 23,136 (258)

Regional and local contributions to ambient non-methane volatile organic compounds at a polluted rural/coastal site in Pearl River Delta, China [PDF]

open access: yes, 2006
Identification of major sources of airborne pollutants and their contribution to pollutant loadings are critical in developing effective pollution control and mitigation strategies.
Blake, DR   +5 more
core   +1 more source

The concentration of BTEX in selected urban areas of Malaysia during the COVID-19 pandemic lockdown

open access: yesUrban Climate, 2022
Volatile organic compounds (VOCs) such as benzene, toluene, ethylbenzene and xylene (BTEX) are air pollutants that harm human health. This study aims to identify BTEX concentrations before the lockdown known as the Movement Control Order was imposed ...
N. S. S. L. Hawari   +7 more
semanticscholar   +1 more source

A walk in the park—Identifying healthy greenspaces using scents

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
As urbanisation accelerates globally, access to nature is increasingly recognised as vital for public health and wellbeing. We captured and analysed plant‐emitted airborne ‘scent signatures’ across Oxford's urban greenspaces to assess their potential health relevance.
William T. Kay   +6 more
wiley   +1 more source

Analysis Study of Available Alternatives for Mitigation of Aromatic Hydrocarbon Emissions from a Glycol Dehydration Unit

open access: yesInternational Journal of Chemical Engineering
A natural gas (NG) dehydration unit based on glycol absorption is considered one of the most important gas processing units, aiming to decrease water content and consequently adjust its dew point.
Abeer M. Shoaib   +3 more
doaj   +1 more source

Assessment of BTEX concentration around fuel station in Eastern Province Kingdom of Saudi Arabia

open access: yesInternational Journal of Environmental Health Engineering, 2021
Aim: The aim of this study is to determine the benzene, toluene, ethylbenzene, and xylene (BTEX) concentration levels in and around the fuel station and its harmful health effects in the city of Dammam and Al Khobar, Saudi Arabia.
Khaled F Salama   +2 more
doaj   +1 more source

Electronic Smoking Devices Among University Students: Usage Patterns and Chemical Composition of Inhaled Substances

open access: yesAnalytical Science Advances, Volume 7, Issue 1, June 2026.
ABSTRACT This study investigated the prevalence of electronic smoking device (ESD) use and its associated behavioural and chemical risks among university students in Bahia, Brazil. A cross‐sectional survey was conducted with 355 students from public and private institutions through an online questionnaire between April and May 2023. Among participants,
Eduard F. Valenzuela   +7 more
wiley   +1 more source

C1-C8 volatile organic compounds in the atmosphere of Hong Kong: Overview of atmospheric processing and source apportionment [PDF]

open access: yes, 2007
We present measurements of C1-C8 volatile organic compounds (VOCs) at four sites ranging from urban to rural areas in Hong Kong from September 2002 to August 2003. A total of 248 ambient VOC samples were collected.
Barletta, B   +5 more
core   +1 more source

Legal situation and current practice of waste incineration bottom ash utilisation in Europe [PDF]

open access: yes, 2020
Almost 500 municipal solid waste incineration plants in the EU, Norway, and Switzerland generate about 17.6 Mt/a of incinerator bottom ash (IBA). IBA contains minerals and metals.
Blanc-Biscarat, Denise   +28 more
core   +5 more sources

Salt‐Freshwater Mixing and Submarine Groundwater Discharge in Sloping Unconfined Tidal Aquifers

open access: yesGeophysical Research Letters, Volume 53, Issue 3, 16 February 2026.
Abstract Previous studies have revealed the groundwater flow and salt transport in unconfined coastal aquifers in response to numerous factors. However, previous studies assumed a flat aquifer base, and it is unclear how a sloping aquifer base would affect the subsurface flow and salinity distributions.
Chengji Shen   +5 more
wiley   +1 more source

Emissions of Volatile Organic Compounds Inferred From Airborne Flux Measurements over a Megacity [PDF]

open access: yes, 2009
Toluene and benzene are used for assessing the ability to measure disjunct eddy covariance (DEC) fluxes of Volatile Organic Compounds (VOC) using Proton Transfer Reaction Mass Spectrometry (PTR-MS) on aircraft.
Apel, E   +6 more
core   +1 more source

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