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Jerome Mack Data by Site by Date (all parameters)

Use this form to retrieve hourly data collected at Jerome Mack. Although this is the most current data, it is not considered official until it has been certified by the technical staff. This information is updated hourly.

This web page provides the most current hourly averaged data available. Our convention for time-tagging data is the beginning of each hour. For example, values shown for the noon hour are based on measurements taken from noon to 1:00 p.m. The noon average will not be calculated until after 1:00 p.m. The noon average will then be available on our external server from 1:15 p.m. to 1:30 p.m. This results in an apparent one-hour time lag in the data. We also present our data in Local Standard Time for each measuring site. During Daylight Savings, this introduces another apparent one-hour time lag in the data.

Use the controls below to select a different date or time format and to control cell highlighting based on measured ozone, sulfur dioxide, nitrogen dioxide or PM-2.5 or PM-10 levels. Click on the Generate Report button once you have made your selections.

Click on the Plot Data button once the tabular report has been generated to open a separate window containing data plots.

Select a different site
Month:Day:Year:Time Format:
Ozone Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy  
Sulfur Dioxide Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
Nitrogen Dioxide Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
PM-2.5 Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
PM-10 Highlights:  Moderate   Unhealthy for Sensitives   Unhealthy   Very Unhealthy   Hazardous  
Green underline for validated data

The table below contains hourly averages for all the parameters and meteorological conditions measured at Jerome Mack for Tuesday, September 17, 2019. All times shown are in PST.

Parameter MeasuredMorningAfternoon Parameter Measured POC
Mid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00
Carbon Monoxide 0.1120.0990.0900.1010.1230.1390.1580.1520.1300.1110.0960.1570.0880.0880.0880.0990.1070.1260.1720.2330.205 FEW NA NA Carbon Monoxide 1 R
Sulfur Dioxide 0.20.20.20.20.20.20.40.30.20.10.20.20.10.10.10.10.10.20.20.70.4 FEW NA NA Sulfur Dioxide 1 R
NOy 4.23.42.43.16.58.110.69.98.36.04.34.32.52.72.63.24.45.810.820.216.5 FEW NA NA NOy 1
Nitric Oxide 1.21.21.21.21.31.52.43.02.82.11.82.31.51.51.51.51.51.31.31.31.3 FEW NA NA Nitric Oxide 1
Nitrogen Dioxide 6.25.64.95.49.210.412.410.99.17.35.86.14.64.84.95.66.88.814.523.919.3 FEW NA NA Nitrogen Dioxide 2 R
Ozone SPN4746434038363740444646485052535451433132 FEW NA NA Ozone 1 R
Wind Speed 3.98.714.612.310.39.710.29.77.34.24.46.17.56.48.37.79.67.84.04.05.6 FEW NA NA Wind Speed 1
Resultant Wind Speed 1.88.114.112.010.09.310.09.46.82.53.14.56.65.57.67.09.17.63.53.95.6 FEW NA NA Resultant Wind Speed 1
Resultant Wind Direction 132179194205202185226232219260211198187186183199209229215177198 FEW NA NA Resultant Wind Direction 1
Outdoor Temperature 78.978.577.376.074.673.375.577.781.084.286.988.188.590.190.690.789.587.084.181.679.4 FEW NA NA Outdoor Temperature 2
Relative Humidity 19.619.322.424.925.727.526.825.822.919.215.012.911.110.08.16.85.57.611.814.316.7 FEW NA NA Relative Humidity 1
Barometric Pressure 945.3945.7945.9946.4947.0948.5949.3949.8950.4950.4950.0949.5948.8947.9947.1946.6946.4946.1946.3946.8947.0 FEW NA NA Barometric Pressure 1
Sea-Level Pressure 1009.21009.71009.81010.41011.01012.51013.31013.81014.31014.31013.91013.41012.81011.81011.01010.51010.31010.01010.31010.81011.0 FEW NA NA Sea-Level Pressure 1
Precipitation 0.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.000.00 FEW NA NA Precipitation 1
PM-10 (Standard Conditions) 28.5835.3246.1346.2624.1929.7031.7634.5530.3326.1618.1440.7021.5517.9217.4217.2915.4015.1723.7828.1430.11 FEW NA NA PM-10 (Standard Conditions) 1 R
PM-Coarse 19.8426.7236.8837.1117.5822.1724.1826.6423.1419.8313.0532.3216.2712.8312.3812.5110.8910.3917.5020.5422.71 FEW NA NA PM-Coarse 3
PM-2.5 (Local Conditions) 6.736.176.206.195.155.845.715.795.204.493.745.253.583.613.563.303.203.544.445.555.32 FEW NA NA PM-2.5 (Local Conditions) 3 R
Parameter MeasuredMid 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Noon 1:00 2:00 3:00 4:00 5:00 6:00 7:00 8:00 9:0010:0011:00Parameter Measured POC
MorningAfternoon
Maximum values for each parameter are bold within the table. Minimum values are bold italic.
 R - Data from this instrument meets EPA quality assurance criteria for regulatory purposes.

PLEASE NOTE: This data has not been verified by the Clark County Department of Air Quality and may change. This is the most current data, but it is not official until it has been certified by our technical staff. Data is collected from Clark County Department of Air Quality ambient monitoring sites and may include data collected by other outside agencies. This data is updated hourly. All times shown are in local standard time unless otherwise indicated.