BLUE HILL OBSERVATORY
Site ID: 25-021-3003 · 42.2118°N, 71.1140°W
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Monitors
| Parameter | POC | First Year | Last Sample |
|---|---|---|---|
| Reactive oxides of nitrogen (NOy) | 2 | 2003 | 2006-09-30 |
| Nitric oxide (NO) | 1 | 2002 | 2025-08-31 |
| Nitric oxide (NO) | 2 | 2003 | 2006-09-30 |
| Nitrogen dioxide (NO2) | 1 | 2002 | 2025-08-31 |
| Oxides of nitrogen (NOx) | 1 | 2002 | 2025-08-31 |
| Sum of PAMS target compounds | 1 | 2002 | 2011-06-29 |
| Total NMOC (non-methane organic compound) | 1 | 2002 | 2011-06-29 |
| n-Dodecane | 1 | ||
| Ethane | 1 | 2002 | 2011-06-29 |
| Ethylene | 1 | 2002 | 2011-06-29 |
| Propane | 1 | 2002 | 2011-06-29 |
| Propylene | 1 | 2002 | 2011-06-29 |
| Acetylene | 1 | 2002 | 2011-06-29 |
| n-Butane | 1 | 2002 | 2011-06-29 |
| Isobutane | 1 | 2002 | 2011-06-29 |
| trans-2-Butene | 1 | 2002 | 2011-06-29 |
| cis-2-Butene | 1 | 2002 | 2011-06-29 |
| n-Pentane | 1 | 2002 | 2011-06-29 |
| Isopentane | 1 | 2002 | 2011-06-29 |
| 1-Pentene | 1 | 2002 | 2011-06-29 |
| trans-2-Pentene | 1 | 2002 | 2011-06-29 |
| cis-2-Pentene | 1 | 2002 | 2011-06-29 |
| 3-Methylpentane | 1 | 2002 | 2011-06-29 |
| n-Hexane | 1 | 2002 | 2011-06-29 |
| n-Heptane | 1 | 2002 | 2011-06-29 |
| n-Octane | 1 | 2002 | 2011-06-29 |
| n-Nonane | 1 | 2002 | 2011-06-29 |
| n-Decane | 1 | 2002 | 2011-06-29 |
| Cyclopentane | 1 | 2002 | 2011-06-29 |
| Isoprene | 1 | 2002 | 2011-06-29 |
| 2,2-Dimethylbutane | 1 | 2002 | 2011-06-29 |
| 2,4-Dimethylpentane | 1 | 2002 | 2011-06-29 |
| Cyclohexane | 1 | 2002 | 2011-06-29 |
| 3-Methylhexane | 1 | 2002 | 2011-06-29 |
| 2,2,4-Trimethylpentane | 1 | 2002 | 2011-06-29 |
| 2,3,4-Trimethylpentane | 1 | 2002 | 2011-06-29 |
| 3-Methylheptane | 1 | 2002 | 2011-06-29 |
| Methylcyclohexane | 1 | 2002 | 2011-06-29 |
| Methylcyclopentane | 1 | 2002 | 2011-06-29 |
| 2-Methylhexane | 1 | 2002 | 2011-06-29 |
| 1-Butene | 1 | 2002 | 2011-06-29 |
| 2,3-Dimethylbutane | 1 | 2002 | 2011-06-29 |
| 2-Methylpentane | 1 | 2002 | 2011-06-29 |
| 2,3-Dimethylpentane | 1 | 2002 | 2011-06-29 |
| n-Undecane | 1 | 2002 | 2011-06-29 |
| 2-Methylheptane | 1 | 2002 | 2011-06-29 |
| Ozone | 1 | 2002 | 2025-08-31 |
| m/p Xylene | 1 | 2002 | 2011-06-29 |
| Benzene | 1 | 2002 | 2011-06-29 |
| Toluene | 1 | 2002 | 2011-06-29 |
| Ethylbenzene | 1 | 2002 | 2011-06-29 |
| o-Xylene | 1 | 2002 | 2011-06-29 |
| 1,3,5-Trimethylbenzene | 1 | 2002 | 2011-06-29 |
| 1,2,4-Trimethylbenzene | 1 | 2002 | 2011-06-29 |
| n-Propylbenzene | 1 | 2002 | 2011-06-29 |
| Isopropylbenzene | 1 | 2002 | 2011-06-29 |
| o-Ethyltoluene | 1 | 2002 | 2011-06-29 |
| m-Ethyltoluene | 1 | 2002 | 2011-06-29 |
| p-Ethyltoluene | 1 | 2002 | 2011-06-29 |
| m-Diethylbenzene | 1 | 2002 | 2011-06-29 |
| p-Diethylbenzene | 1 | 2002 | 2011-06-29 |
| Styrene | 1 | 2002 | 2011-06-29 |
| 1,2,3-Trimethylbenzene | 1 | 2002 | 2011-06-29 |
| Wind Speed - Scalar | 1 | 2005 | 2017-06-30 |
| Wind Direction - Scalar | 1 | 2005 | 2017-06-30 |
| Outdoor Temperature | 1 | 2005 | 2025-08-31 |
| Relative Humidity | 1 | 2005 | 2025-08-31 |
| Solar radiation | 1 | 2005 | 2025-08-31 |
| Barometric pressure | 1 | 2005 | 2025-08-31 |
| PM2.5 - Local Conditions | 3 | 2014 | 2016-01-31 |
| Acceptable PM2.5 AQI & Speciation Mass | 3 | 2003 | 2013-12-31 |