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Commuters wear face masks to protect themselves from air pollution at a skytrain station in Bangkok, Thailand, Wednesday, Jan. 22, 2025. (AP Photo/Sakchai Lalit)

Commuters wear face masks to protect themselves from air pollution at a skytrain station in Bangkok, Thailand, Wednesday, Jan. 22, 2025. (AP Photo/Sakchai Lalit)

Commuters wear face masks to protect themselves from air pollution at a skytrain station in Bangkok, Thailand, Wednesday, Jan. 22, 2025. (AP Photo/Sakchai Lalit)

Commuters wear face masks to protect themselves from air pollution at a skytrain station in Bangkok, Thailand, Wednesday, Jan. 22, 2025. (AP Photo/Sakchai Lalit)

A view of Bangkok's elevated Skytrain line, in Bangkok, Thailand, Saturday, Jan. 25, 2025. (AP Photo/Jerry Harmer)

A view of Bangkok's elevated Skytrain line, in Bangkok, Thailand, Saturday, Jan. 25, 2025. (AP Photo/Jerry Harmer)

Passengers exit a station on Bangkok's elevated Skytrain, in Bangkok, Thailand, Saturday, Jan. 25, 2025. (AP Photo/Jerry Harmer)

Passengers exit a station on Bangkok's elevated Skytrain, in Bangkok, Thailand, Saturday, Jan. 25, 2025. (AP Photo/Jerry Harmer)