TY - JOUR ID - TI - Sensitivity of green and blue-green algae to methyl tert-butyl ether AU - CHEN Jianmeng AU - MA Jianyi AU - CAO Wei AU - WANG Pinwei AU - TONG Senmiao and SUN Yizhao VL - 21 IS - 4 PB - SP - 514 EP - 519 PY - JF - Journal of Environmental Sciences JA - J. Environ. Sci. UR - http://www.jesc.ac.cn/jesc_en/ch/reader/view_abstract.aspx?file_no=2009210417&flag=1 KW - methyl tert-butyl ether; toxicity; green algae; ecological risk; cyanobacteria AB - The toxicity of methyl tert-butyl ether (MTBE) to Chlorella ellipsoidea and Aphanizomenon flos-aquae was tested and assessed for a 15-d incubation with concentrations of MTBE from high (2.00 104 mg/L) to low (2 mg/L). The results showed that the toxicity was low when the concentration of MTBE was in the range 1.00 104–2.00 104 mg/L (the greatest inhibition of growth-rate was 70%–71%, occurred during the day 1–5). Low concentrations (2–500 mg/L) stimulated algal growth up to the greatest e ect of 85%–200% when the concentration of MTBE was 50–100 mg/L during day 3–5. The toxicity of MTBE (72–120 h EC50) was 6.65 103–9.58 103 mg/L for C. ellipsoidea and that is 1.14 104–2.00 104 mg/L for A. floc-aquae. We found that the toxicity and ecological risk of MTBE for the algal community structure were low and the toxicity was influenced by the duration time of the test. ER -