Themed collection ESPI Cover Art 2019

Guest editors Desiree Plata, Rob Jackson, Avner Vengosh and Paula Mouser introduce “The environmental geochemistry and biology of hydraulic fracturing” themed issue of Environmental Science: Processes & Impacts.

A multi-disciplinary perspective on connecting chemistry, exposure and medical information to “neurotoxicity” for mass spectrometry-based environmental assessment, including multiple interactive resources for readers to use and explore.

Trenbolone and altrenogest photoproducts move faster and regenerate parents during transport in soil. Traditional agricultural runoff management can exhibit lower than expected efficiencies for trienone steroids when photoproducts were considered.

Instream nitrogen retention capacities are impaired by treated and untreated point-source inputs.

Emerging investigator series: Phthalate losses in floor dust are due to abiotic chemical degradation as well as microbial degradation of phthalates under elevated relative humidity conditions.

Insulation materials affect indoor air by (i) releasing primary volatile organic compounds (VOCs) from enclosure cavities to the interior space, (ii) mitigating exposure to outdoor pollutants through reactive deposition (of oxidants, e.g., ozone) or filtration in infiltration air, and (iii) generating secondary VOCs and gas-phase byproducts from chemical reactions.

Organic solutes in snow and ice can be distributed heterogeneously throughout the ice bulk and across the ice surface. This may affect air-surface interactions and heterogeneous reactions in snow-covered regions.

After 2 decades of irrigation with groundwater from a holding pond: OBT and ¹⁴C are retained in the recent wood growth whereas HTO levels remained constant with wood age.

The impact of dissolved and particulate organic mater on coastal water denitrification is evaluated. Particulate organic matter and its composition play a dominant role in regulating denitrifying activity.

Sea spray aerosols can act as a vector for sea-to-land transport of perfluorinated alkyl acids via the atmosphere.

Monitoring polycyclic aromatic hydrocarbon contamination from two recent and two historical oil spills in Canada, using fluorescence spectroscopy.

Ultrahigh resolution mass spectrometry used to identify unique organic sulfur signatures in hydraulic fracturing wastewaters likely associated with alcohol ethoxysulfate surfactants.

Emission sources were revealed by using receptor models and validated by in situ sampling in factories under actual manufacturing processes.