Growth measurements (calculated as cell yield) for Pseudokirchneriella subcapitata exposed to low, moderate and high mixtures of arsenic, copper, chromium, uranium and zinc + nutrients (sulphate and ammonia) generated using spiked Latte and Halfway Creek water collected in winter and summer.

Table 5: Growth measurements (calculated as cell yield) for Pseudokirchneriella subcapitata exposed to low, moderate and high mixtures of arsenic, copper, chromium, uranium and zinc + nutrients (sulphate and ammonia) generated using spiked Latte and Halfway Creek water collected in winter and summer.

Treatments	Winter	Summer
Treatments	Cell Yield (x10⁴ cells/mL)	Cell Yield (x10⁴ cells/mL)
Latte Creek
Laboratory Control	31.50 ± 2.80	27.40 ± 1.70
Latte Creek (Site Control)	169.40 ± 11.60*	79.90 ± 3.30*
Low	143.80 ± 8.50*^#	76.0 ± 3.80*
Moderate	177.50 ± 7.90*	75.20 ± 3.50*
High	176.30 ± 6.60*	75.20 ± 4.30*
Halfway Creek
Laboratory Control	30.10 ± 2.30	26.60 ± 1.70
Halfway Creek (Site Control)	173.80 ± 11*	72.80 ± 4.70*
Low	167.50 ± 8.90*	72.0 ± 2.90*
Moderate	173.0 ± 8.0*	75.0 ± 3.70*
High	189.50 ± 6.0*	71.80 ± 5.0*

Notes: Data represent mean ąstandard deviation; * Significantly different (p < 0.05) from laboratory control; # Significantly lower (p < 0.05) than site control.