This study was conducted to determining the values of LC₅₀, mortality rates and DNA damages (Daphnia magna) of species exposed to pozzolanic cement concentrations of 50, 100, 150, 200, 250, and 300 mg/L for 24 h. To compare the effect of increased pH value associated with the addition of cement, a NaOH group was also formed in Gammarus komareki individuals. As a result, the LC₅₀ values in D. magna and G. komareki were calculated as 118.57 and 197.24 mg/L/24 h, respectively. It was observed that, unlike the G. komareki individuals, cement particles were accumulated on D. magna. In the comparison trial (NaOH) performed on G. komareki individuals, 60% mortality was determined. The number of deaths from cement and NaOH in the experimental groups with the same pH values were found similar. There was not statistically significant difference between control and experimental groups for DNA damage on D. magna. As a result, it has been determined that cement has a toxic effect on D. magna and G. komareki due to increasing the pH value of water.

本研究旨在确定暴露于 50、100、150、200、250 和 300 mg/L 火山灰水泥浓度 24 小时的物种的 LC ₅₀值、死亡率和 DNA 损伤 ( Daphnia magna )。为了比较与添加水泥相关的 pH 值增加的影响，还在Gammarus komareki个体中形成了 NaOH 组。结果，D. magna和G. komareki的 LC ₅₀值分别计算为 118.57 和 197.24 mg/L/24 h。据观察，与G. komareki个体不同，水泥颗粒堆积在D. magna上。在进行的比较试验 (NaOH) 中G. komareki个体，确定了 60% 的死亡率。在相同 pH 值的实验组中，水泥和 NaOH 导致的死亡人数相似。对照组和实验组对D的 DNA 损伤没有统计学上的显着差异。麦格纳_ 因此，已确定水泥由于增加水的 pH 值而对D. magna和G. komareki具有毒性作用。