CHINA'S top environmental watchdog has criticized authorities of Shijiazhuang, capital city of Hebei Province, which neighbors Beijing, for worsening air quality and insufficient efforts in environmental protection.

The air quality in Shijiazhuang has worsened sharply since October 2016 and most pollution indicators deteriorated in January and February of this year, the Ministry of Environmental Protection (MEP) said Monday after a recent inspection team to the city led by Chen Jining, minister of environmental protection.

In January this year, PM2.5 density in Shijiazhuang surged 51.5 percent from a year earlier to 200 micrograms per cubic meter, the MEP said in a statement.

Chen attributed the situation largely to lax environmental efforts of local governments, especially those at the county and township levels, inefficient management, a cluster of highly polluting enterprises and poor implementation of response measures to tackle severe pollution.

Chen urged more efforts in locating the source of pollutants, reducing pollutant emission, strengthening supervision over key enterprises, pressing ahead with industrial upgrading and improving efficiency of environmental protection.

Chinese cities suffered from more days of air pollution in January, with Shijiazhuang being the worst polluted among the nation's 74 major cities, the MEP said last week.

China is intensifying efforts to fight pollution and environmental degradation after decades of growth left the country saddled with problems such as smog and contaminated soil.

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