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MERC ER01-12
10
Live Organisms 10-50 µm –
The Port of Baltimore was experiencing a bloom of
dinoflagellate
Prorocentrum minimum
during this trial, which was by far the dominant species in this size
category (approximately 95% of the phytoplankton found in samples).
Other species in this size
category included:
Chaetoceros
sp.,
Pediastrum
sp.,
Cosinodiscus
sp., and
Gymnodinium
sp.
Viable Bacteria and Indicator Pathogens
– In general, levels of regulated pathogens were low in
all samples regardless of analytical method used. Full datasets available upon request.
Enterococci
Uptake Mean
(cfu/100 ml)
SD
Discharge Mean
(cfu/100 ml)
SD
Control
0.0
0.0
21.0
3.46
Treated
0.0
0.0
0.0
0.0
E. coli
Uptake Mean
(cfu/100 ml)
SD
Discharge Mean
(cfu/100 ml)
SD
Control
161.67
15.14
52.0
9.54
Treated
0.67
0.58
0.0
0.0
V. cholerae
Uptake Mean
(cfu/100 ml)
SD
Discharge Mean
(cfu/100 ml)
SD
Control
0.0
0.0
0.0
0.0
Treated
0.0
0.0
0.0
0.0
Heterotrophic
Plate Counts
Uptake Mean
(cfu/100 ml)
SD
Discharge Mean
(cfu/100 ml)
SD
Control
1,216.67
343.03
TNTC
TNTC
Treated
333.33
136.63
700.0
282.84
TNTC = too numerous to count
Uptake
Mean/ml
Uptake
SD
Discharge
Mean/ml
Discharge
SD
Control
31,633
1,397
2,830
408
Treated
18,973
1,354
4,526
194