As their Numbers grow with warmer temperatures, concentrations of the toxic mercurycompound may increase, Drevnick says.
由于其数量随气温升高而增加，有毒汞化合物的浓度可能会增加，德莱夫尼克说。
2
Thiomersal does not contain methyl mercury, which is a naturally-occurring compound and whose toxic effects on humans have been well studied.
硫柳汞不含有甲基汞，后者是一种自然产生的化合物，其对人类的有毒影响已得到充分的研究。
3
Thiomersal is a compound containing ethyl mercury used to prevent bacterial and fungal growth in inactivated (in which the virus has been killed) vaccines presented in multi-dose vials.