Volunteers collect wastes at the bank of Yellow River in Boxing County of Binzhou, east China's Shandong Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Chu Baorui/Xinhua)
Volunteers search and pick up floats on water at a park in Tangshan, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Zhu Dayong/Xinhua)
Sanitary workers collect floats on a river in Suzhou, east China's Jiangsu Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Hang Xingwei/Xinhua)
Volunteers promote environmental protection knowledge in Xiangdu District of Xingtai, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Zhang Chi/Xinhua)
Volunteers collect wastes at a park in Congtai District of Handan, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Hao Qunying/Xinhua)
Children learn about the sewage test methods at a sewage treatment plant in Zunhua, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Liu Mancang/Xinhua)
Citizens visit a sewage treatment plant in Zunhua, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Liu Mancang/Xinhua)
Residents make artwork with discarded articles in Xiangdu District of Xingtai, north China's Hebei Province, June 4, 2022. Various events are held to raise people's awareness of environmental protection in China ahead of the World Environment Day, which falls on June 5. (Photo by Zhang Chi/Xinhua)
