IN.gov - Skip Navigation

Note: This message is displayed if (1) your browser is not standards-compliant or (2) you have you disabled CSS. Read our Policies for more information.

Gary-IITRI Data by Site by Date (all parameters)

Use this form to retrieve hourly data collected at Gary-IITRI. 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. For most of Indiana this is Eastern Standard Time. 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 pollutants and meteorological conditions measured at Gary-IITRI for Saturday, December 3, 2016. All times shown are in CST.

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
Sulfur Dioxide 2.42.4 FEW FEW2.42.52.42.62.83.23.24.43.22.62.42.32.2 FEW Sulfur Dioxide 1 R
Nitric Oxide 7.56.0 SPZ FEW6.54.83.74.63.93.54.65.95.95.75.95.94.2 FEW Nitric Oxide 1
Nitrogen Dioxide 15.3 SPZ SPZ FEW14.912.812.015.612.48.310.913.311.310.49.711.112.3 FEW Nitrogen Dioxide 1 R
Oxides of Nitrogen 21.525.0 SPZ FEW20.216.414.518.915.110.614.318.115.914.914.415.815.3 FEW Oxides of Nitrogen 1
Ozone PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM PM Ozone 1 R
Wind Speed 7.57.1 FEW FEW7.06.48.58.06.63.84.04.95.86.15.35.76.3 FEW Wind Speed 1
Resultant Wind Speed 7.37.0 FEW FEW6.76.28.27.65.93.33.44.35.25.55.05.56.0 FEW Resultant Wind Speed 1
Resultant Wind Direction 262261 FEW FEW263259275274282322286261265255221243251 FEW Resultant Wind Direction 1
Maximum Wind Gust 14.112.6 FEW FEW14.014.516.015.314.610.09.311.012.011.111.011.810.7 FEW Maximum Wind Gust 1
Std. Dev. Wind Direction 1411 FEW FEW15161616273133292624221418 FEW Std. Dev. Wind Direction 1
Outdoor Temperature 35.534.4 FEW FEW33.333.333.133.133.334.334.935.736.636.135.434.534.0 FEW Outdoor Temperature 1
Dew Point Temperature 24.123.3 FEW FEW22.422.722.222.322.022.822.923.022.723.023.724.223.7 FEW Dew Point Temperature 1
Relative Humidity 6363 FEW FEW64656464636261605759626666 FEW Relative Humidity 1
Solar Radiation 0.000.00 FEW FEW0.000.000.000.020.070.160.150.180.280.180.090.030.00 FEW Solar Radiation 1
Ultraviolet Radiation 0.0000.000 FEW FEW0.0000.0000.0001.2423.9889.5829.84411.96818.10011.6025.2191.2630.000 FEW Ultraviolet Radiation 1
Barometric Pressure 1003.91003.8 FEW FEW1004.81005.21005.21005.41005.41004.81004.91005.11005.01004.71004.61004.71004.3 FEW Barometric Pressure 1
Sea-Level Pressure 1025.51025.4 FEW FEW1026.41026.91026.91027.01027.01026.41026.61026.71026.71026.41026.31026.31026.0 FEW Sea-Level Pressure 1
Precipitation 0.000.00 FEW FEW0.000.000.000.000.000.000.000.000.000.000.000.000.00 FEW Precipitation 1
PM-10 (Standard Conditions) 1.402.170.970.710.821.083.424.594.705.573.134.455.753.660.960.700.82 FEW PM-10 (Standard Conditions) 2 R
Black Carbon PM2.5 (Std) 0.700.680.560.570.590.570.510.620.620.590.550.720.560.520.500.560.55 FEW Black Carbon PM2.5 (Std) 1
PM-2.5 (Local Conditions) 9.9214.709.319.519.799.3411.0412.8016.908.3510.4416.6016.6016.386.969.35 FEW NA PM-2.5 (Local Conditions) 3
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 5:00Parameter 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.

Key to PM-2.5 (Local Conditions) Acceptable Highlight Colors:

The color-coding of the hourly PM-2.5 data is based on a 1-hour to 24-hour projection. This projection is based on statistics compiled over several years comparing the daily maximum 1-hour average to the midnight-to-midnight 24-hour average.
The table below shows the levels, color-coding, and suggested actions for both the 1-hour projection and the actual 24-hour standard.

Color Air Quality Rating 1-Hour
Average
(µg/m³)
24-Hour
Average
(µg/m³)
Actions to take
Moderate 15.5 - 35.4 12.1 - 35.4
  • No health impacts are expected when levels are within this range.
  • No special actions are required when levels are within this range.

PLEASE NOTE: This data has not been verified by the IDEM 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 IDEM 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.