-
Noise monitoring program

Hourly Monitoring Data

Filter by Owner
Filter by Site:
Monday, 
-
DNR

Bad River Tribal School AQS ID - 55 003 0010

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 44 41 40 40 35 28 32 34 38 50 55 55 46 40 44 43 49 48 40 28 31 30 28 28
WIND SPEED mph 3.2 2.8 4.2 1.3 0.7 1.6 3.6 2.2 1.8 2.1 3 3.2 2.8 1.5 4.6 7.7 4.9 3.1 0.5 0.5 1.3 2 0.9 4.4
WIND DIRECTION Degrees 232 149 312 344 295 217 255 238 170 67 16 33 80 116 230 254 323 10 144 259 277 270 245 344
TEMPERATURE degF 66.4 65.9 65.7 65.6 65.3 64.9 65.6 67.5 70.3 73.8 74.8 75.9 75.3 76.9 79.4 78.7 69.9 73.2 72.8 70.1 69.6 69.3 68.1 69.4
RELATIVE HUMIDITY %RH 92.8 94.5 94.3 94.8 95 95.5 94.9 89.8 82.4 70.9 68.2 67.2 71.8 70.7 64.5 65.9 86.3 80.2 79.5 87.6 87.3 86.9 92.6 88.5
BAROMETRIC PRESSURE inHg 29.74 29.69 29.66 29.66 29.67 29.68 29.68 29.67 29.66 29.66 29.66 29.64 29.62 29.6 29.58 29.57 29.59 29.57 29.56 29.57 29.58 29.58 29.58 29.59
PRECIPITATION inches 0.18 0.19 0.09 0 0 0 0 0 0 0 0 0 0 0 0 0 0.41 0 0 0 0 0.03 0.06 0
SOLAR RADIATION w/m2
PM2.5 ug/m3

Green Bay East High AQS ID - 55 009 0005

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
PM2.5 ug/m3

Green Bay UW AQS ID - 55 009 0026

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 41 36 34 38 50 46 37 45 44 47 54 61 59 62 63 56 55 57 50 43 45 47 32 32

Columbus AQS ID - 55 021 0015

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 33 43 48 56 49 44 44 45 48 47 47 50 52 49 44 35 32 40 39 34 35 36 40

Madison East AQS ID - 55 025 0041

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 33 32 28 51 51 42 44 44 46 48 48 47 47 43 43 43 40 34 39 34 25 36 33 33
TEMPERATURE degF 75.2 74.7 74.4 67.2 65.8 65.5 67.1 68.7 72.5 76.3 77.4 78 81.8 83 85.6 87.2 86 83.8 74.9 73.5 72 73.8 72.6 72.3
WIND SPEED mph 7.1 9.4 10.5 18.7 3.7 1.8 8.1 11.8 7.8 5.1 6.8 6.4 7.5 6 3.7 4.1 5.7 6 6.4 1.4 2 5.6 4 3.6
WIND DIRECTION Degrees 171 174 188 11 42 188 188 188 191 171 171 172 196 206 274 261 220 183 12 78 194 315 318 304
PM2.5 ug/m3

Horicon Wildlife Area AQS ID - 55 027 0001

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 38 40 45 55 54 46 44 44 46 47 46 51 51 51 52 50 43 35 45 44 41 36 37
CO ppm 0.275 0.294 0.228 0.139 0.143 0.143 0.149 0.157 0.167 0.164 0.167 0.182 0.172 0.176 0.189 0.198 0.205 0.209 0.175 0.162 0.167 0.177 0.218
SO2 ppb 0.904 0.312 0.172 0.051 0.1 0.147 0.125 0.149 0.197 0.17 0.175 0.474 0.249 0.248 0.227 0.165 0.227 0.27 0.241 0.205 0.175 0.202 0.221
NO ppb 0 0 0 0 0 0 0 0.031 0.228 0 0 0 0 0 0 0 0 0 0 0 0 0 0
NOy-NO ppb 4 4 0.7 1.1 1.4 1.7 1.6 2.137 2.484 1.84 1.58 2.233 1.794 1.82 2.245 2.275 2.517 2.705 1.424 1.779 2.6 1.904 1.793
NOy ppb 3.8 3.8 0.6 0.9 1.2 1.6 1.6 2.164 2.712 1.792 1.495 2.212 1.702 1.679 2.194 2.138 2.342 2.543 1.205 1.543 2.407 1.727 1.605
PM10 ug/m3 (25C) 18 17 16 2 -1 -4 -5 -3 -1 -3 2 2 5 5 4 7 14 14 11 6 5 3 7 8
PM COARSE (10-2.5) ug/m3 10 8 10 4 3 -2 3 6 5 7 6 7 8 12 12 9 5 6 8 11 10
WIND SPEED mph 4.7 5 6.4 13.3 8.8 3.4 5.3 6.3 6.1 7.4 6.2 6.9 7.9 5.6 5.2 5.4 4.6 3.8 1.5 4.4 6.6 4.4 5 3.4
WIND DIRECTION Degrees 158 174 228 333 5 125 169 171 176 200 199 195 204 222 237 230 222 202 208 235 200 240 262 291
BAROMETRIC PRESSURE inHg 29.77 29.72 29.7 29.72 29.73 29.62 29.64 29.67 29.67 29.67 29.67 29.65 29.63 29.62 29.6 29.58 29.56 29.54 29.51 29.53 29.52 29.53 29.53 29.53
PRECIPITATION inches 0 0.18 0.76 1.68 1.03 0.01 0 0.26 0 0 0.17 0.21 0 0 0 0 0 0 0.33 0.01 0 0 0 0.02
TEMPERATURE degF 70.1 70.5 69.2 67.5 64.7 64.5 64.8 67.8 68.9 72.6 74.1 75.8 78.6 81.7 82.9 84 83.4 81.3 78.8 72.6 69.7 69.5 70.3 70.8
RELATIVE HUMIDITY %RH 84.7 86.7 89.3 90.8 93 92.7 93 91.6 87.4 77.6 75.7 73.8 70 67 67.1 67.3 69.1 74.8 81.7 82.7 78.5 81.4 84.1 83.1
PM2.5 ug/m3

Newport Park AQS ID - 55 029 0004

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 64 62 55 54 53 43 32 38 39 47 57 60 57 57 55 54 52 52 50 41 36 28 31
WIND SPEED mph 3.9 3.9 3.1 3.8 3.7 3 1.1 2 3.3 4.8 5.9 6.1 5.4 4.8 4.4 4.5 3.6 3.1 2.3 1.2 0.8 0.3 0.4
WIND DIRECTION Degrees 210 210 190 196 189 264 118 154 222 211 197 199 205 191 195 197 199 225 215 261 184 309 24
TEMPERATURE degF 62.9 62.6 62.4 62.4 62.7 65.6 66.9 65.4 65.5 69.7 70.3 70.4 72.2 70 68 66.6 62.9 62.8 64.8 64.6 64.3 63.3 63.8

Eau Claire DOT Sign Shop AQS ID - 55 035 0014

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 58 55 52 50 47 36 33 31 40 44 42 44 44 44 45
WIND SPEED mph 7.1 3.8 3.7 5 2.8 1.2 2.8 2.7 2.5 1.5 1.9 3.2 2.2 2.9 3.1
WIND DIRECTION Degrees 325 66 129 168 189 12 1 340 39 116 236 184 227 273 257
TEMPERATURE degF
PM2.5 ug/m3
PM10 ug/m3 (25C)
PM COARSE (10-2.5) ug/m3

Fond Du Lac AQS ID - 55 039 0006

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 38 40 42 39 55 53 48 48 46 46 48 49 51 52 51 51 50 43 38 38 43 42 37 37

Potawatomi AQS ID - 55 041 0007

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 38 35 39 48 47 45 39 38 40 46 46 49 49 47 47 46 41 33 28 37 25 32 31 27
WIND SPEED mph 6.1 5.4 8.5 6.4 5 4.8 3.8 3.7 4.9 4.7 3.8 5.2 5.7 5.2 4.8 4.6 2 1.6 2.2 2.6 0.8 2.4 2.8 2.7
WIND DIRECTION Degrees 194 192 249 263 141 331 277 280 266 265 250 248 270 286 281 287 335 351 261 328 265 292 304 313
RELATIVE HUMIDITY %RH 95.2 96.3 95.5 97.4 98.6 98.7 98.4 96.9 94 83.9 80 72.6 70.3 69.3 67.2 66.9 70.6 80.2 93.8 95.2 98.7 98.5 98.4 99.5
TEMPERATURE degF 67.8 67.8 66.7 63.5 62.4 62.3 63 63.9 65.1 68.8 70.7 73.7 75.1 76.3 77.1 77.1 76.5 73.4 69.5 66 64.1 64 63.9 63.6
PM2.5 ug/m3

Potosi AQS ID - 55 043 0009

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
PM2.5 ug/m3

Jefferson-Laatsch AQS ID - 55 055 0009

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 36 34 34 38 53 46 41 43 46 48 49 46 47 52 46 41 38 34 35 50 43 34 33 29

Chiwaukee Prairie AQS ID - 55 059 0019

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 43 26 25 25 25 46 45 36 41 47 51 56 51 55 55 49 49 46 41 36 35 46 47 44
TEMPERATURE degF 67.6 68.9 68.3 68.8 69.6 67.9 64.5 64.7 67.7 70.4 72.8 73.7 73.3 79.2 86.3 87.8 86.9 85.5 83.3 81.7 81.6 78.9 76.1 74.9
WIND SPEED mph 6.2 8.1 9.9 9.4 8.4 11.2 1.9 6.9 12.4 13.7 10.6 7.9 7.4 6.9 10.9 11.3 10.6 6.4 5.4 5.7 9.6 14.6 13.3 10
WIND DIRECTION Degrees 183 190 194 203 233 348 51 206 203 193 185 158 162 228 244 248 249 256 219 239 254 262 263 276
PRECIPITATION inches 0 0.03 0 0 0.02 0.18 0.01 0 0.01 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
SOLAR RADIATION w/m2
PM2.5 ug/m3

Kenosha-Water Tower AQS ID - 55 059 0025

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 35 30 22 22 22
TEMPERATURE degF 70.5 70.4 70.4 71.1 71.1 67 65.3 65.7 68.7 73.1 74.2 77.4 79.8 83 85.9 87 86.2 84.7 82.8 81.8 80.9 76.8 74.7 73.8

Kewaunee AQS ID - 55 061 0002

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 53 49 49 44 45 50 53 49 52 52 55 52 52 50 51 54 56 57 60 60 53 52 60 53

La Crosse DOT AQS ID - 55 063 0012

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 36 52 56 49 42 38 42 43 42 43 43 43 42 41 41 42 47 49 45 45 49 39 24 29

Manitowoc AQS ID - 55 071 0007

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 52 52 49 48 49 48 50 55 58 61 61 65 59 43 47 49
WIND SPEED mph 6 6.8 7.1 5.3 5.8 4.8 4.3 5.2 4.4 4.2 2.9 3.5 1.4 2 3.2 0.6
WIND DIRECTION Degrees 281 263 256 251 243 239 224 233 232 240 219 236 143 74 206 238
TEMPERATURE degF 66 68.4 66.9 71.1 69.5 69 71.5 70.1 69.4 67.6 65.5 64 64.6 65.5 64.9 63

Lake Dubay AQS ID - 55 073 0012

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 50 51 51 46 44 43 44 44 41 39 40 40 34 32 33
PM2.5 ug/m3

Bayside AQS ID - 55 079 0085

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 34 31 29 25 35 51 48 41 34 30 36 56 53 50 50 46 39 30 40 43 42 41

Milwaukee-16th St. Health Center AQS ID - 55 079 0010

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 34 31 20 20 30 48 38 26 23 36 43 51 53 53 54 47 49 44 38 31 39 39 42 40
PM2.5 ug/m3

Milwaukee-College Ave NR AQS ID - 55 079 0056

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
CO ppm 0.278 0.32 0.31 0.271 0.246 0.194 0.207 0.31 0.473 0.257 0.204 0.245 0.277 0.3 0.367 0.366 0.386 0.315 0.302 0.349 0.21 0.159 0.159 0.201
NO2 ppb 11.5 10 10.6 13.6 14.5 8.1 12.8 20.2 17.9 17.2 18.9 22.5 22.7 17.6 16.3 16.2 16.6 22 22.1 12.9 7.2 6.1 6.7
WIND SPEED mph 7.2 8.5 9.9 8.8 5 5.6 5.1 3.7 6.8 8.7 11.9 9.1 8 7.8 7.1 6.4 7.1 5.9 4.7 4.4 5.5 7 6.9 6.2
WIND DIRECTION Degrees 170 166 167 164 290 13 89 159 191 186 174 192 213 216 245 243 246 235 198 207 276 246 263 267
TEMPERATURE degF 70.9 71.1 71.5 71.4 69.7 65.8 64.8 66.3 70.6 74.3 76.6 78.3 79.6 81.8 85.2 87 87.5 85.8 84 82.7 75.4 75.1 75.1 74.2
PM2.5 ug/m3
PM10 ug/m3 (25C)
PM COARSE (10-2.5) ug/m3

Rhinelander Tower AQS ID - 55 085 0996

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
SO2 ppb 2 24.2 2 3.7 2.2 2.5 2.1 2.1 2.1 2.2 2.7 2.1 2.1 2.1 2.2 2.2 2.4 2.2 2.2 2.2 2.2 2.3 2.3
WIND SPEED mph 6.3 3.4 3.8 2.9 1.7 1.8 2.8 1.3 1.2 1.4 2.1 2.4 3.2 2.7 2 1.6 1.7 1.7 0.6 1.8 3 3.2 1.9
WIND DIRECTION Degrees 176 252 295 172 142 321 318 304 294 267 269 265 316 316 337 5 10 357 112 322 318 323 297
TEMPERATURE degF 70.5 68.8 63.8 62.5 62 62.4 62.9 64.5 66.8 71.3 73.2 76.2 78.6 78.9 78.1 75.1 67.9 66.5 66 65.6 64.9 64.4 64

Appleton AQS ID - 55 087 0009

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 42 41 42 52 55 50 38 38 47 50 54 57 55 53 53 53 50 50 43 38 39 38 28 24
PM2.5 ug/m3

Grafton AQS ID - 55 089 0008

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 33 33 28 26 35 53 52 48 41 40 36 44 56 56 51 48 49 45 39 43 38 38 38 37
TEMPERATURE degF 65.6 65.1 66.1 67.1 67.2 65.1 63.7 64.8 66.8 70.1 74.8 78.7 83.5 86.1 88.4 88.4 88.4 84.5 80.6 74.4 72 70.6 70 70.8
WIND SPEED mph 3.4 3.5 3.5 5.7 11.4 10.3 8.1 10.1 9.7 5.6 5.4 7 10.4 9.9 11.4 11 10.2 7.1 1.9 1.3 5.7 10.8 10.5 11
WIND DIRECTION Degrees 132 135 142 153 338 57 135 171 166 134 160 176 228 244 252 262 261 242 194 316 270 263 269 280

Harrington Beach Park AQS ID - 55 089 0009

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 45 48 40 30 39 54 55 51 49 44 42 44 46 50 52 49 47 51 56 61 46 42 41 37
TEMPERATURE degF 67.1 64.7 65 65.8 66.1 63.6 62.7 63.7 66.4 68 67 68.4 73.4 82 86.1 86.9 86.9 78.4 72.5 70.7 72.2 71.9 71 70.2
WIND SPEED mph 7.1 7.6 7.2 8.2 6.8 5.8 9.1 7.6 8.1 5.8 6.1 7 4.3 4.1 5.8 6 5.9 3.5 3.3 4.6 5.4 5.5 5.9 6.3
WIND DIRECTION Degrees 176 164 171 168 337 65 125 181 174 174 149 181 196 198 248 256 253 186 183 202 248 283 276 289
PM2.5 ug/m3

Racine-Payne & Dolan AQS ID - 55 101 0020

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 40 34 25 23 24 44 34 24 35 45 50 51 51 54 51 44 44 43 39 35 37 44 43 40

Beloit-Converse AQS ID - 55 105 0030

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 34 33 28 24 47 47 42 40 44 47 49 48 44 43 40 40 41 43 38 38 39 34 30 28

Devils Lake AQS ID - 55 111 0007

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 28 24 42 51 50 45 45 43 42 43 41 40 37 18 22 37 38 44 43 44 48
PM10 ug/m3 (25C) 9 10 16 5 3 2 3 5 4 4 6 4 4 9 17 10 10 15 5 12 7 9 11 16
PM COARSE (10-2.5) ug/m3 6 4 5 1 5 2 4 7 6 7 8 5 4 6 14 6 5 9 3 7 3 6 8 13
WIND SPEED mph 0.4 1.8 2.5 2.9 4.2 0.8 0.9 1 1.6 1.2 0.9 0.9 1.4 2.5 3.3 2.6 0.8 1 2 2 4.1 3.1 2.7 2.8
WIND DIRECTION Degrees 128 95 354 40 70 210 315 307 236 227 134 217 245 250 253 246 87 5 275 265 288 293 264 265
TEMPERATURE degF 73.5 73.4 69 63.7 63.2 62.9 64.5 69.1 72.6 73.7 75.6 78.7 81 82.6 84.3 83.6 78.3 75.3 76.6 73.7 74.2 71.8 70.9 70.7
PM2.5 ug/m3

Sheboygan-Haven AQS ID - 55 117 0009

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 34 42 42 37 54 51 51 54 49 49 48 47 44 51 51 50 47 45 41 34 41 36 33 52
WIND SPEED mph 6.6 9 10.1 8.7 6.7 8.1 9.8 10.8 10.5 9 7.8 3.9 3.4 3.6 6.1 1.7 0.7
WIND DIRECTION Degrees 181 198 198 216 221 247 260 260 260 252 249 231 190 192 259 19 157
TEMPERATURE degF 71.3 67.2 69.9 72.1 76 78 80.8 82.4 83.4 83.5 82.8 80.4 78.1 72.2 72.9 70.8 66

Sheboygan-Kohler Andrae AQS ID - 55 117 0006

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 53 55 47 36 42 57 61 54 53 53 51 48 48 52 62 69 72 70 72 71 46 38 35 49
TEMPERATURE degF 62.6 62 62.4 63.5 65.7 62.8 61.5 62.9 65.1 66.7 65.2 64.7 64.9 66.7 68.3 67.8 67.6 65.4 65 64.7 67.6 69 68.6 67.2
WIND SPEED mph 4.4 6.8 6.8 1.2 4 5.9 10.4 5.9 8.7 9.5 7.7 8.2 5.6 4.8 6.5 6.3 7.3 5.5 4.1 3.5 1.5 1.9 1.3 2.2
WIND DIRECTION Degrees 153 165 192 56 354 83 128 187 196 190 182 190 188 185 185 181 190 190 200 202 233 276 328 349

Trout Lake AQS ID - 55 125 0001

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 38 42 47 52 48 46 45 44 45 48 52 50 50 44 34 36 36 27 25 30 33 31

Waukesha-Cleveland Ave. AQS ID - 55 133 0027

Parameters Units Max Min 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
OZONE ppb 35 33 23 21 43 47 38 37 31 36 45 47 49 51 51 48 39 35 33 38 41 44 40
TEMPERATURE degF 70.7 71.7 71.3 71.5 68 66 65.5 67.2 73.6 79.1 82.6 82.2 82.5 85.2 87.4 88.1 87.9 85.3 83.3 79.1 72.2 73.7 75.2 73.7
WIND SPEED mph 2.8 3.7 3.5 3.6 10.4 2.2 6.5 4.2 2.5 3.1 3.6 3.4 3.3 5.6 5.9 7.4 6 4.3 2.2 5.3 5.6 7 8.8 8.4
WIND DIRECTION Degrees 164 162 165 167 306 99 126 139 159 163 175 174 218 245 254 265 259 240 219 274 240 250 272 275
PM2.5 ug/m3
PM10 ug/m3 (25C)
PM COARSE (10-2.5) ug/m3