text
stringlengths
0
6.44k
.002
.003
.004
.005
.006
.007
.008
.009
.01 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.0005
.001
.0015
.002
.0025
.003
.0035 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.001
.002
.003
.004
.005
.006
.007
.008
.009
.01 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.002
.004
.006
.008
.01
.012 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.001
.002
.003
.004
.005
.006
.007
.008
.009 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.0025
.005
.0075
.01
.0125
.015
.0175
.02
.0225 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.002
.004
.006
.008
.01
.012
.014
.016
.018
.02 NO2
1 2 3 4 5 6 7 8 9 10 11 12
0
.002
.004
.006
.008
.01
.012
.014
.016 NO2
1 2 3 4 5 6 7 8 9 10 11 12
CS MBS NCI
NCO NNB SCI
SCM SCO SNB
42
patterns exist for NO3 in the studied area. Nitrate seasonal pattern is well defined (Fig
3.11) with very low values late in the dry season (Feb-May) and a sharp increase in
June, first flush of rainy season, followed by gradual increase, which peaks in either
September or October, and a gradual decrease during the late wet season (Jun-Nov). In
MBS and CS, which don’t have regular canal discharges, low values persists until
September and the peak lags into October-November. Finally, NO3 and NOx (not
shown) follow the same seasonal pattern, which closely follows water flow seasonality
(Fig 3.6).
Figure 3.11: Seasonal variability of Nitrate in Biscayne Bay
Ammonium (NH4)
Ammonium follows the same spatial pattern as that of NO3 with higher values in
SCI, NNB and SCM (with means of 0.029, 0.024 and 0.021 mg/l respectively) and the
lowest in SCO (mean of 0.011 mg/l). Seasonality of NH4 indicates lower values during