• Cover image
    Issue
    Volume 39, Issue 9
    C1, 1649-1851
    September 2020

Issue Information

Free Access

Issue Information ‐ Cover

  • Pages: C1
  • First Published:25 August 2020

Critical Perspectives

Moving Beyond p < 0.05 in Ecotoxicology: A Guide for Practitioners

  • Pages: 1657-1669
  • First Published:15 June 2020

Many alternative methods to null hypothesis significance testing (NHST) and p values exist, and no single method will replace the outsized role of NHST in science and statistical inference. LL2, LL3, LL4 = log logistic 2‐, 3‐, and 4‐parameter models. Image created by Robert Kratt.

Environmental Chemistry

Fractionation Analysis of Mercury in Soils: A Comparison of Three Techniques for Bioavailable Mercury Fraction Determination

  • Pages: 1670-1677
  • First Published:09 June 2020

The content of the mobile (labile) mercury determined by the sequential extraction methods was statistically significantly higher (p < 0.0001) than the content of bioavailable mercury determined by the diffusive gradients in thin films technique. The form of mercury determined as mobile (labile) by the sequential extraction methods should not be automatically regarded as bioavailable. DGT = diffusive gradients in thin films.

Environmental Toxicology

Polyps of the Jellyfish Aurelia aurita Are Unaffected by Chronic Exposure to a Combination of Pesticides

  • Pages: 1685-1692
  • First Published:16 May 2020

Survival, asexual reproduction, and metabolite profile of polyps of the moon jellyfish Aurelia aurita were unaffected after chronic exposure to 2 pesticides. NMR = nuclear magnetic resonance.

Evaluation of the Aryl Hydrocarbon Receptor Response in LMH 3D Spheroids

  • Pages: 1693-1701
  • First Published:25 May 2020

Comparison of cell viability, cytochrome P450 (CYP)1A metabolic activity, CYP1A4 and 1A5 messenger (m)RNA expression, and aryl hydrocarbon receptor (AhR) mediated gene expression between leghorn male hepatoma cells grown as 2D and 3D cells following exposure to 3,3′,4,4′,5‐pentachlorobiphenyl (PCB‐126). EROD = ethoxyresorufin‐O‐deethylase.

Hazard/Risk Assessment

Open Access

Screening‐Level Estimates of Environmental Release Rates, Predicted Exposures, and Toxic Pressures of Currently Used Chemicals

  • Pages: 1839-1851
  • First Published:15 June 2020

Environmental decision support requires attention for more than 350 000 chemicals and their mixtures. Any assessment would ask for assessment of Drivers and Pressures (emissions) and then Status and Impacts, to steer the societal Responses (according to the Drivers, Pressures, State, Impact, and Response [DPSIR] model, causal analysis).