IARC group 2A agents are substances and exposure circumstances that have been classified as probable carcinogens by the International Agency for Research on Cancer (IARC). [1] This designation is applied when there is limited evidence of carcinogenicity in humans, as well as sufficient evidence of carcinogenicity in experimental animals .

2A类致癌物，世界卫生组织国际癌症研究机构 致癌物 清单，共81种。 2A类致癌物：对人很可能致癌，此类致癌物对人致癌性证据有限，对实验动物致癌性证据充分。 2B类致癌物：对人可能致癌，此类致癌物对人致癌性证据有限，对实验动物致癌性证据并不充分；或对人类致癌性证据不足，对实验动物致癌性证据充分。 In prep. 注：In prep.表示相关研究结果尚未以电子版或印刷版形式公布。 2A类致癌物，世界卫生组织国际癌症研究机构致癌物清单，共81种。 2类致癌物（ …

Group 2 elements almost exclusively form ionic compounds containing the M 2 + ion, they are more reactive toward group 15 elements, and they have a greater tendency to form complexes with Lewis bases than do the alkali metals. Pure samples of most of the alkaline earth metals can be obtained by electrolysis of the chlorides or oxides.

2020年8月2日 · 2級致癌物(Group 2A)：對人類致癌可能性極高的物質。 歸類證據：流行病學證據有限或不足，但動物實驗證據充分。 如：紫外線輻射、高溫油炸釋出物質、二氯甲烷等。

Group 2A . Probably carcinogenic to humans : Is based on at least two of the following evaluations, including at least one that involves either exposed humans or human cells or tissues: • Limited evidence of carcinogenicity in humans, • Sufficient evidence of carcinogenicity in experimental animals,

Group 2A means that the agent is probably carcinogenic to humans. For agents in this category, there is usually convincing evidence that the agent causes cancer in laboratory animals and some evidence that it could cause cancer in humans, but the evidence in humans is not conclusive. There could also be

2023年10月1日 · Glyphosate was classified as a probable human carcinogen (Group 2A) by the International Agency for Research on Cancer (IARC) partially due to strong mechanistic evidence in 2015. Since then, numerous studies of glyphosate and its formulations (GBF) have emerged.

Toxic substances that are found to be probable human carcinogens (IARC Group 2A) and that have limited human epidemiological evidence for specific human cancer sites as identified in table 1, should be linked to those cancer sites in the SEM.

As we move down the group (from Li to Fr), the following trends are observed (Table \(\PageIndex{1}\)): All have a single electron in an 's' valence orbital; The melting point decreases; The density increases; The atomic radius increases; The ionization energy decreases (first ionization energy)

cadmium and cadmium compounds (group 2a) A. Evidence for carcinogenicity to humans ( limited ) Exposure to cadmium (primarily as the oxide) has been associated with increased risks of prostatic and respiratory cancers 1 , 2 .