Sodium arsenite (NaAsO₂ = NA) is mainly released into the environment from anthropogenic sources such as mining and pesticides. This study examined the effects of NA on the development of Bufotes viridis by exposing eggs and larvae to NA at 11 different concentrations including absence of NA (control) and comparing their developmental patterns. the seven lowest concentrations are often found in the environment (500, 1000, 1500, 2000, 6000, 12,000, 24,000, 25,000, 32,000, 36,000 µg/l). Our results suggest that low concentrations of NA positively affect growing larvae of B. viridis by increasing their length and maximum swimming speed compared to the control group. However, high concentrations of NA significantly reduced the larval growth and swimming speed compared to the control group. LC50 values were found for B. viridis eggs at NA concentration of 260,000 µg/l after nine days of exposure. A high mortality rate and both internal and external abnormalities (e.g. hepatocytes and intestinal epithelium reduction, abdominal oedema and tail flexures) were observed at high concentrations, suggesting that NA can have important effects to those environmentally relevant NA levels.

亚砷酸钠（NaAsO ₂  = NA）主要通过采矿和杀虫剂等人为来源释放到环境中。本研究通过将卵和幼虫暴露于 11 种不同浓度的 NA（包括不添加 NA（对照））并比较它们的发育模式，研究了 NA 对青蟾蜍发育的影响。环境中经常发现七个最低浓度（500、1000、1500、2000、6000、12,000、24,000、25,000、32,000、36,000 µg/l）。我们的结果表明，与对照组相比，低浓度的 NA 通过增加青芽孢幼虫的长度和最大游泳速度，对它们的生长产生积极影响。然而，与对照组相比，高浓度的 NA 显着降低了幼虫的生长和游泳速度。暴露 9 天后，NA 浓度为 260,000 µg/l 时，发现了绿色B. viridis卵的 LC50 值。在高浓度下观察到高死亡率以及内部和外部异常（例如肝细胞和肠上皮减少、腹部水肿和尾部弯曲），这表明NA可以对那些与环境相关的NA水平产生重要影响。