Assessment of PBT and vPvB chemicals: Requirements, challenges and policy implications
نویسندگان
چکیده
منابع مشابه
Review of QSAR Models for Ready Biodegradation
Many regulatory laws resulting from the enactment of the United Nations Stockholm Convention in May 2004, together with the new REACH legislation, have promoted significant new activity in the assessment of Persistent, Bioaccumulative and Toxic (PBT) substances. These are chemicals that have the potential to persist in the environment, accumulate within the tissues of living organisms and, in t...
متن کاملTowards rationally designed hazard, risk and persistency assessment: Putting the “bio” back into biodegradability tests
Regulatory emphasis has recently shifted to identifying and prioritising chemicals that are persistent, liable to bioaccumulate and are toxic (e.g. REACH). Chemicals with these properties have previously been shown to be those most harmful to human health and the environment. Biodegradation is one of the most important fate processes that determines persistence, i.e. the rate a chemical degrade...
متن کاملAnnex Xv – Identification of Svhc Format 1 Annex Xv Dossier Proposal for Identification of a Substance as a Pbt Substance
of the evaluation: Bis(tributyltin) oxide is considered as a PBT substance. Tributyltin, to which the substance transforms in the aqueous environment, fulfils the P, B and T criteria. Furthermore, bis(tributyltin) oxide fulfils the T criterion for human health due to the hazard classification of tributyltin compounds. Bis (tributyltin) oxide has been discussed in the TC NES subgroup on identifi...
متن کاملIn Silico Screening-Level Prioritization of 8468 Chemicals Produced in OECD Countries to Identify Potential Planetary Boundary Threats
Legislation such as the Stockholm Convention and REACH aim to identify and regulate the production and use of chemicals that qualify as persistent organic pollutants (POPs) and very persistent and very bioaccumulative (vPvB) chemicals, respectively. Recently, a series of studies on planetary boundary threats proposed seven chemical hazard profiles that are distinct from the POP and vPvB profile...
متن کاملChallenges to Soil Erosion Control Measures among Farmers in Anambra State, Nigeria: Implications for Extension Policy
The study investigated challenges to soil erosion control measures among farmers in Anambra State, Nigeria. Purposive, multistage and random sampling techniques were employed in selecting a sample size of two hundred and forty (240) respondents. Structured interview schedule was used for data collection. Frequency counts, percentage, mean scores and factor analysis were used for data analysis. ...
متن کامل