Workers for the Delhi Jal or water board engaged in cleaning the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Toxic foam floats near the boat of the Delhi Jal or water board in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Workers for the Delhi Jal or water board spray chemical to clean the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Jasraj, 70, takes bath on the banks of the the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A person carries sacred Ganges river water in a container as he walks across the bridge over the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Workers for the Delhi Jal or water board spray chemical to clean the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Commuters pray from a bridge across the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

An elderly woman changes her clothes after praying in the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A worker for the Delhi Jal or water board sprays chemical to clean the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A woman in traditional attire gets photographed in front of the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Workers for the Delhi Jal or water board put up a cloth curtain to stop the flow of the toxic foams floating in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Workers for the Delhi Jal or water board gets ready to clean the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A worker for the Delhi Jal or water board moves his boat in circular pattern to cut the flow of toxic foams flowing in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A worker for the Delhi Jal or water board sits in his boat in the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A person prays on the banks of the river Yamuna as toxic foams float in the river, in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A woman throws used prayer materials in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Jasraj, 70, drinks water from the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Birds fly over toxic foams floating in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Worker warm themselves in front of a bonfire sitting on the banks of the river Yamuna as toxic foam floats, in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Workers for the Delhi Jal or water board spray chemical to clean the toxic foams in the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

Birds sit on the statues of Hindu deities recovered from the river Yamuna in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A person empties a bag of garbage in the the river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)

A buffalo herder makes his flock cross river Yamuna filled with toxic foams in New Delhi, India, Tuesday, Oct. 29, 2024. (AP Photo/Manish Swarup)