Evaluating the impact of evolving green and grey urban infrastructure on local particulate pollution around city square parks.

The PM 10 concentration in the morning presented a decreasing trend and reached its lowest point at around 05:00 (6.67 μg/m 3 in April, 3.84 μg/m 3 in May, and 2.95 μg/m 3 in June), then rapidly increased to its peak at around 12:00 (12.58 μg/m 3 in April, 8.83 μg/m 3 in May, and 9.48 μg/m 3 in June).

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