Acute Toxicity of Dissolved Ozone to Eggs and Larvae of Selected Freshwater Fish Species

To prevent encroachment of undesirable fish species entrained in Connecticut River water diverted to the Quabbin Reservoir, the investigators determined levels of ozone and chlorine required to destroy all larvae and eggs of selected test organisms within 48 hours. The oxidant exposure duration of three hours was chosen to reflect the transit time of the diverted water from the Northfield impoundment to Quabbin. The experimental design reflected both in-line and contact chamber modes of oxidant administration.