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Ji’nan has exited from the last 10 : the air quality ranking of July
Ji’nan has exited from the last 10 of the air quality ranking of July and exited from the last 20 of the ranking from January to July. Ozone concentration has risen 7.2%, compared to the same period last year ,pm 10, fine particulate matter, sulfur dioxide ,nitrogen dioxide and carbon monoxide concentration has respectively decreased 24.7%、28.0%、28.6%、8.8%、40.0%. There are15 days of good air quality in the urban air , accounting for 48.4% of the total monitoring days.