Causes of toxicity to Hyalella azteca in a stormwater management facility receiving highway runoff and snowmelt. Part II: Salts, nutrients, and water quality

► Assessed seasonal changes of salts, nutrients, water quality in stormwater ponds. ► Collected water, sediment samples for chemical and toxicological analyses. ► Effects on survival and growth of Hyalella were greater in spring than fall. ► Toxicity primarily attributed to chloride from road salt. ► Companion manuscript discusses effects of metals, PAHs.