Results 81 to 90 of about 4,985 (183)

Effects of 1,3-Butadiene, Isoprene, and Their Photochemical Degradation Products on Human Lung Cells

open access: yesEnvironmental Health Perspectives, 2004
Because of potential exposure both in the workplace and from ambient air, the known carcinogen 1,3-butadiene (BD) is considered a priority hazardous air pollutant. BD and its 2-methyl analog, isoprene (ISO), are chemically similar but have very different toxicities, with ISO showing no significant carcinogenesis.
Doyle, Melanie   +4 more
openaire   +2 more sources

The continental source of glyoxal estimated by the synergistic use of spaceborne measurements and inverse modelling [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
Tropospheric glyoxal and formaldehyde columns retrieved from the SCIAMACHY satellite instrument in 2005 are used with the IMAGESv2 global chemistry-transport model and its adjoint in a two-compound inversion scheme designed to estimate the continental ...
A. Richter   +8 more
doaj  

Illicit Drug‐Derived Volatile Organic Compounds as Markers for Application in Noncontact Detection Technology

open access: yesThe Chemical Record, Volume 26, Issue 3, March 2026.
This review highlights the characteristic odor markers of illicit drugs, emphasizing volatile markers from both natural and synthetic sources, and explores the shift from canine‐based detection to emerging noncontact sensing technologies. Illicit drug use remains a global concern, requiring effective detection methods to counter evolving concealment ...
Minwoo Kim   +4 more
wiley   +1 more source

SCIAMACHY formaldehyde observations: constraint for isoprene emission estimates over Europe? [PDF]

open access: yesAtmospheric Chemistry and Physics, 2009
Formaldehyde (HCHO) is an important intermediate compound in the degradation of volatile organic compounds (VOCs) in the troposphere. Sources of HCHO are largely dominated by its secondary production from VOC oxidation, methane and isoprene being the ...
G. Dufour   +6 more
doaj  

Climate Change, Air Quality, and Pollen Allergies—State of the Art and Recommendations for Research and Public Health

open access: yesAllergy, Volume 81, Issue 3, Page 663-683, March 2026.
ABSTRACT Allergies are one of the major health challenges of our time, associated with a high individual burden of disease and high costs for the healthcare system. Given their prevalence, allergies are also highly relevant from a public health perspective. The development of allergic diseases is multifactorial. In addition to individual factors (e.g.,
Jobst Augustin   +13 more
wiley   +1 more source

Exposures in Indoor Air Affecting Health

open access: yesAllergy, Volume 81, Issue 3, Page 700-719, March 2026.
ABSTRACT Indoor air quality (IAQ) is influenced by a wide range of chemical, biological and physical agents that can negatively impact physical, immunological and mental health. Adverse health effects depend on the type and concentration of pollutants, duration of exposure, and individual susceptibility.
Maria Hartiala   +38 more
wiley   +1 more source

Molecular ecology of isoprene degraders in the terrestrial environment

open access: yes, 2018
Isoprene (2-methyl 1, 3-butadiene) is the most abundant non-methane BVOC (biogenic volatile organic compound) released into the atmosphere. Terrestrial plants are the primary producers of isoprene and release 500-750 million tonnes of isoprene per year, to protect themselves from abiotic environmental stresses such as heat and reactive oxygen species ...
openaire   +2 more sources

Influence of convective transport on tropospheric ozone and its precursors in a chemistry-climate model [PDF]

open access: yesAtmospheric Chemistry and Physics, 2005
The impact of convection on tropospheric O3 and its precursors has been examined in a coupled chemistry-climate model. There are two ways that convection affects O3. First, convection affects O3 by vertical mixing of O3 itself.
R. M. Doherty   +3 more
doaj  

Isoprene and monoterpene fluxes from Central Amazonian rainforest inferred from tower-based and airborne measurements, and implications on the atmospheric chemistry and the local carbon budget [PDF]

open access: yesAtmospheric Chemistry and Physics, 2007
We estimated the isoprene and monoterpene source strengths of a pristine tropical forest north of Manaus in the central Amazon Basin using three different micrometeorological flux measurement approaches.
U. Kuhn   +20 more
doaj  

Molecular ecology of marine isoprene degradation

open access: yes, 2014
Isoprene is an atmospheric trace gas whose emissions to the atmosphere are roughly equal to that of methane. It is highly reactive and has the potential to affect climate through a variety of interactions in the atmosphere, including the formation of ozone. In the marine environment alone, algae produce up to 11 Tg y-1 of isoprene.
openaire   +1 more source

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