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It may be used as a precursor in one of the chemical reactions at the final stage of formation of a chemical listed in Schedule 1 or Schedule 2, part b; It poses a significant risk to the object and purpose of this Convention by virtue of its importance in the production of a chemical listed in Schedule 1 or Schedule 2, part A;
Schedule 1 phosphonofluoridates; where R1 = (cyclo)alkyl with C < C 10 and R2 = Me, Et, i-Pr or n-Pr. The following criteria shall be taken into account in considering whether a toxic chemical or precursor should be included in Schedule 1: It has been developed, produced, stockpiled or used as a chemical weapon as defined in Article II;
The Lists themselves are divided into part A with toxic substances that can be used directly as chemical weapons and part B containing their precursors (chemicals with which those substances can be made). The Lists are subject to the following criteria, among others: [2] [3] Schedule 1 [4] contains substances most clearly related to a chemical ...
The criteria for including a chemical in this schedule is that it is not listed in either of the other two, and: It has been produced, stockpiled or used as a chemical weapon; It poses otherwise a risk to the object and purpose of the Convention because it possesses such lethal or incapacitating toxicity as well as other properties that might ...
Chemical alarm systems have been identified in a number of different taxa, including gastropods, [2] echinoderms, [3] amphibians [4] and fishes. One of the most well-studied chemical alarm signals is schreckstoff, the use of which is widespread in the superorder Ostariophysi (e.g., minnows, characins, catfishes, etc.). About 64% of all ...
A salmon which has died after spawning. Some species of fish exhibit mass simultaneous mortality as part of their natural life cycle. Fish kill due to spawning fatalities can occur when fish are exhausted from spawning activities such as courtship, nest building, and the release of eggs or milt (sperm). Fish are generally weaker after spawning ...
Easton starts to look a little worn down, and his schedule changes in ways which make it harder to catch up with him.His hours of availability generally creep later than I, as a parent and working ...
The international pictogram for chemicals that are sensitising, mutagenic, carcinogenic or toxic to reproduction. In genetics, a mutagen is a physical or chemical agent that permanently changes genetic material, usually DNA, in an organism and thus increases the frequency of mutations above the natural background level.