1.make a comparative study of the river pollution levels of godavari india flowing in five different states during the pre-lockdown and lockdown period.
Answers
Answer:
River Ganga's water quality has improved with increase in dissolved oxygen
Concentration of dissolved oxygen has refined the tributaries of Ganga
Reduced human activities have improved the water quality of river Yamuna
New Delhi: As the coronavirus-induced lockdown continues, the water quality of Ganga and Yamuna has improved significantly in the areas with reduced industrial activities. The river Ganga’s water quality has improved with the increase in dissolved oxygen (DO) and reduced nitrate concentration. The tributaries of Ganga have also refined due to the concentration of DO increase during the lockdown period.
Also Read: Yamuna’s Water Quality Improves During Lockdown Due To Lesser Effluents, Increase Fresh Water: DPCC
The Delhi Pollution Control Committee (DPCC) in its report submitted to the Yamuna Monitoring Committee (YMC) has also stated that the absence of industrial effluents and reduced human activities has improved the water quality of river Yamuna.
The Central Pollution Control Broad (CPCB) in its latest report ‘Impact of lockdown on water quality of river Ganga, April 2020 has said the main sources of water pollution in the river are industrial effluents and the domestic wastewater.