Page 5 - Policy brief on persistent organic pollutants in Indian environment: A wake-up call for concerted action
P. 5
Policy Brief
Figure 2: Methodology of the study titled Climate-induced mobilization of POPs in the Ganges river
in the case of less soluble compounds. Inputs from the of the Gangetic Plain during the dry season, because
rain-fed tributaries, at least during the dry season, do the Ganges receives glacier-fed tributaries throughout
not compensate for these losses from the water stream its course. Meltwater-derived inputs of PCBs and of
and hence fail to dilute the contaminant loads. It is very high-molecular-weight PAHs are therefore expected to
likely that these results can be generalized for the whole remain relevant even further downstream during periods
DAK = Devprayag Alaknanda
DBG = Devprayag Bhagirathi
DGR = Devprayag Ganga River
FD = Farakka downstream
FU = Farakka upstream
GS = Gangasagar
KD = Kanpur downstream
KU = Kanpur upstream
PU = Patna upstream
PD = Patna downstream
UKD = Uttarkashi downstream
UKU = Uttarkashi upstream
VD = Varanasi downstream
VU = Varanasi upstream
Figure 3: Sampling locations and population density (km−2) in the Ganges basin. Top right: sampling locations in higher ranges magnified.
JANUARY 2018 5
Figure 2: Methodology of the study titled Climate-induced mobilization of POPs in the Ganges river
in the case of less soluble compounds. Inputs from the of the Gangetic Plain during the dry season, because
rain-fed tributaries, at least during the dry season, do the Ganges receives glacier-fed tributaries throughout
not compensate for these losses from the water stream its course. Meltwater-derived inputs of PCBs and of
and hence fail to dilute the contaminant loads. It is very high-molecular-weight PAHs are therefore expected to
likely that these results can be generalized for the whole remain relevant even further downstream during periods
DAK = Devprayag Alaknanda
DBG = Devprayag Bhagirathi
DGR = Devprayag Ganga River
FD = Farakka downstream
FU = Farakka upstream
GS = Gangasagar
KD = Kanpur downstream
KU = Kanpur upstream
PU = Patna upstream
PD = Patna downstream
UKD = Uttarkashi downstream
UKU = Uttarkashi upstream
VD = Varanasi downstream
VU = Varanasi upstream
Figure 3: Sampling locations and population density (km−2) in the Ganges basin. Top right: sampling locations in higher ranges magnified.
JANUARY 2018 5
