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Using organic wastes as soil amendments can be an important measure to improve soil quality and reduce waste accumulation and landfilling. However, their potential contaminant loads, can be a source of environmental concern. Consequently, legislation has been developed to regulate the use of these wastes in agricultural soils but only considers chemical parameters which are insufficient to establish their level of environmental risk. A possible solution is the use of Species sensitivity distributions (SSDs) to incorporate ecotoxicological data from test batteries in legislation. In this study, different hazardous concentrations (HC5 and HC50) were determined using ecotoxicological data (EC10 and EC50) for five different wastes. Results demonstrate that, as expected, current legislative thresholds do not translate to environmental risk/protection and that SSDs may be an important tool allowing the simple inclusion and interpretation of ecotoxicological data from test batteries in legislation. On the other hand, SSDs must be used with caution as there are still doubts on their actual risk and what estimates provide adequate protection. For instance, HC50 values are not recommended and overlap with the more conservative HC5 highlighting that using lower effect concentrations may not always provide the most protective approach. Also, hazardous concentrations need to be calibrated at the field or semi-field level, to verify environmental protection in different soils/environments and the adequacy of standard test organisms. This article is protected by copyright. All rights reserved.
This article was published in the following journal.
Name: Environmental toxicology and chemistry
We compared inter-species sensitivity to a model narcotic compound, 2-Methylnaphthalene, to test if taxonomical relatedness, feeding guilds, and trophic level govern species sensitivities on species d...
Since the mid-1970 s, thousands of studies have evaluated the toxicity of various chemicals to aquatic organisms. Results from many of these studies have been used to develop species sensitivity dis...
The aquatic toxicity profiles of synthetic pyrethroid insecticides are remarkably similar, and results for a large number of species can be combined across compounds in Species Sensitivity Distributio...
Sediment toxicity studies and ecological risk assessments on organic contaminants routinely apply organic carbon normalization to toxicity data; however, no studies examine its potential for use in so...
Identifying and mapping the wide range of sulfur species within complex matrices presents a challenge for understanding the distribution of these important biomolecules within environmental and biolog...
To define pediatric sex-specific blood pressure percentiles that were a function of both age and height. Also, to define the precise age at which blood pressure distributions for differen...
In the underlying study, a genetically modified P. berghei parasite is used. P. berghei is one of the four Plasmodium species that causes malaria in rodents. The hypothesis is that immuniz...
The study aims to evaluate the hypothesized benefits of a systematic organic diet for children, over those of a conventional diet. The specific objectives of this study are to: i) Demonstr...
Energy metabolism and insulin sensitivity were assessed in a case-control study in patients with branched-chain organic acidemias.
Results from a small number of human cohort studies are also available and indicate that there are positive associations between organic food consumption and reduced risk/incidence of cert...
Specialized clothing or equipment worn for protection against health hazards. Personal Protective Equipment may include MASKS; RESPIRATORY PROTECTIVE DEVICES; HEAD PROTECTIVE DEVICES; EYE PROTECTIVE DEVICES; EAR PROTECTIVE DEVICES; PROTECTIVE CLOTHING; and protective footwear.
A field of study concerned with the principles and processes governing the geographic distributions of genealogical lineages, especially those within and among closely related species. (Avise, J.C., Phylogeography: The History and Formation of Species. Harvard University Press, 2000)
An Act prohibiting a health plan from establishing lifetime limits or annual limits on the dollar value of benefits for any participant or beneficiary after January 1, 2014. It permits a restricted annual limit for plan years beginning prior to January 1, 2014. It provides that a health plan shall not be prevented from placing annual or lifetime per-beneficiary limits on covered benefits. The Act sets up a new competitive health insurance market giving tens of millions of Americans the same choices of insurance that members of Congress will have. It aims to bring greater accountability to health care and to control cost of health insurance premiums.
Organic compounds that have a relatively high VAPOR PRESSURE at room temperature.
Specialized connective tissue composed of fat cells (ADIPOCYTES). It is the site of stored FATS, usually in the form of TRIGLYCERIDES. In mammals, there are two types of adipose tissue, the WHITE FAT and the BROWN FAT. Their relative distributions vary in different species with most adipose tissue being white.