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| County | Site | Aqs id | Units | 24-Hour | Hour Of Day | 1-Hour | Hour Of Day |
|---|---|---|---|---|---|---|---|
| MAUI | KAHULUI | 15 009 0025 | µg/m³ | 4.8 | 07 AM | 11.0 | 05 AM |
| OAHU | KAPOLEI-NCORE | 15 003 0010 | µg/m³ | 4.1 | 12 AM | 4.4 | 12 PM |
| MAUI | KIHEI | 15 009 0006 | µg/m³ | 3.1 | 03 AM | 9.0 | 10 AM |
| HAWAII | KS HAWAII | µg/m³ | 2.5 | 06 PM | 8.0 | 01 PM | |
| HAWAII | MOUNTAIN VIEW | 15 001 2023 | µg/m³ | 2.2 | 08 PM | 9.0 | 01 PM |
| HAWAII | OCEAN VIEW | 15 001 2020 | µg/m³ | 9.5 | 05 PM | 17.0 | 09 AM |
| HAWAII | PAHALA | 15 001 2016 | µg/m³ | 3.3 | 07 PM | 9.0 | 11 AM |
| OAHU | SAND ISLAND | 15 003 1004 | µg/m³ | 4.1 | 11 PM | 15.1 | 09 AM |
| HAWAII | WAIKOLOA 21 | µg/m³ | 2.1 | 02 PM | 6.0 | 09 PM |