Air Pollution in Araba / Álava: Real-time Air Quality Index and smog alert.

The latest data Last 7 days Araba / Álava pollution September 2017 - May 2020 Quality of life
Current data from stations: LLODIO VALDEREJO TRES MARZO ES1502A AGURAIN EL CIEGO LOS HERRAN
Locations: « Basque Country Araba / Álava Elciego » Iruraiz-Gauna » Laudio / Llodio » Gaubea / Valdegovía » Gasteiz / Vitoria »
Pollution and air quality forecast for Araba / Álava. Today is Saturday, April 27, 2024. The following air pollution values have been recorded for Araba / Álava:
  1. nitrogen dioxide (NO2) - 7 (Good)
  2. particulate matter (PM10) suspended dust - 4 (Good)
  3. ozone (O3) - 81 (Moderate)
  4. carbon monoxide (CO) - 165 (Good)
  5. sulfur dioxide (SO2) - 4 (Good)
  6. particulate matter (PM2.5) dust - 5 (Good)
Real-time Air Quality Index (AQI) for Araba / Álava, Wednesday, January 17, 2024: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Araba / Álava today? Is the air polluted in Araba / Álava?. Is there smog?

Today (Wednesday, January 17, 2024) air quality is moderate in Araba / Álava. Some pollutants in Araba / Álava may slightly affect very few hypersensitive individuals. Air pollutants in Araba / Álava may cause minor breathing discomfort to sensitive people.


How high is the level of NO2? (nitrogen dioxide (NO2))
7 (Good)

What is the level of PM10 today in Araba / Álava? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Araba / Álava is: 4 (Good) The highest PM10 values usually occur in month: 22 (February 2019). The lowest value of particulate matter PM10 pollution in Araba / Álava is usually recorded in: August (0.75).

How is the O3 level today in Araba / Álava? (ozone (O3))
81 (Moderate)

How high is the CO level? (carbon monoxide (CO))
165 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
4 (Good)

What is the current level of PM2.5 in Araba / Álava? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 5 (Good) For comparison, the highest level of PM2.5 in Araba / Álava in the last 7 days was: 13 (Saturday, January 13, 2024) and the lowest: 7 (Sunday, January 14, 2024). The highest PM2.5 values were recorded: 13 (February 2019). The lowest level of particulate matter PM2.5 pollution occurs in month: October (0.42).



Current data Wednesday, January 17, 2024, 8:00 AM

NO2 7 (Good)

PM10 4 (Good)

O3 81 (Moderate)

CO 165 (Good)

SO2 4 (Good)

PM2,5 5 (Good)

5 (Good)

Data on air pollution from recent days in Araba / Álava

index 2024-01-10 2024-01-11 2024-01-12 2024-01-13 2024-01-14 2024-01-15 2024-01-16 2024-01-17
pm10 9
Good		 8
Good		 9
Good		 13
Good		 9
Good		 10
Good		 13
Good		 7
Good
so2 4
Good		 4
Good		 4
Good		 4
Good		 3
Good		 4
Good		 4
Good		 3
Good
no2 19
Good		 14
Good		 17
Good		 25
Good		 13
Good		 23
Good		 26
Good		 6
Good
pm25 9
Good		 8
Good		 9
Good		 13
Moderate		 7
Good		 8
Good		 12
Good		 9
Good
o3 36
Good		 43
Good		 39
Good		 34
Good		 35
Good		 32
Good		 30
Good		 64
Good
co 315
Good		 315
Good		 309
Good		 369
Good		 304
Good		 463
Good		 416
Good		 181
Good
no -
Good		 -
Good		 -
Good		 -
Good		 -
Good		 26
Good		 18
Good		 -
Good
data source »
Air pollution in Araba / Álava from September 2017 to May 2020
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
co 190 (Good) 195 (Good) 226 (Good) 237 (Good) 260 (Good) 82 (Good) 19 (Good) 12 (Good) 28 (Good) 13 (Good) 38 (Good) 223 (Good) 162 (Good) 196 (Good) 224 (Good) 283 (Good) 224 (Good) 273 (Good) 200 (Good) 197 (Good) 209 (Good) 169 (Good) 168 (Good) 160 (Good) 168 (Good) 190 (Good) 215 (Good) 262 (Good) 250 (Good) 235 (Good) 243 (Good) 218 (Good) 140 (Good)
so2 2.6 (Good) 1.7 (Good) 1.5 (Good) 2.2 (Good) 2.4 (Good) 0.61 (Good) 0.17 (Good) 0.1 (Good) 0.28 (Good) 0.1 (Good) 0.31 (Good) 2.4 (Good) 2.3 (Good) 2.4 (Good) 1.9 (Good) 2.8 (Good) 2.5 (Good) 2.3 (Good) 2.2 (Good) 2.1 (Good) 2.5 (Good) 2.4 (Good) 2.6 (Good) 2.3 (Good) 2 (Good) 2.3 (Good) 2.2 (Good) 2.4 (Good) 1.8 (Good) 3.4 (Good) 3.6 (Good) 2.8 (Good) 2.7 (Good)
pm10 10 (Good) 8.7 (Good) 13 (Good) 20 (Good) 13 (Good) 3.3 (Good) 0.89 (Good) 0.76 (Good) 2 (Good) 0.75 (Good) 2.3 (Good) 15 (Good) 9.5 (Good) 10 (Good) 14 (Good) 22 (Moderate) 8.8 (Good) 11 (Good) 9.7 (Good) 14 (Good) 18 (Good) 17 (Good) 16 (Good) 15 (Good) 15 (Good) 16 (Good) 6.9 (Good) 9.5 (Good) 11 (Good) 8.3 (Good) 12 (Good) 14 (Good) 12 (Good)
o3 49 (Good) 57 (Good) 62 (Good) 47 (Good) 43 (Good) 9.1 (Good) 6.2 (Good) 3.3 (Good) 7.9 (Good) 3.4 (Good) 9.5 (Good) 58 (Good) 66 (Good) 75 (Moderate) 67 (Good) 58 (Good) 52 (Good) 33 (Good) 47 (Good) 48 (Good) 48 (Good) 45 (Good) 47 (Good) 45 (Good) 58 (Good) 63 (Good) 72 (Moderate) 56 (Good) 41 (Good) 46 (Good) 45 (Good) 46 (Good) 53 (Good)
no2 4.5 (Good) 5.3 (Good) 10 (Good) 16 (Good) 17 (Good) 5.4 (Good) 1.1 (Good) 0.62 (Good) 1.4 (Good) 0.43 (Good) 1 (Good) 8.3 (Good) 8.8 (Good) 9.7 (Good) 16 (Good) 24 (Good) 13 (Good) 15 (Good) 11 (Good) 11 (Good) 10 (Good) 7.5 (Good) 6.5 (Good) 7.2 (Good) 9.3 (Good) 9.7 (Good) 8.6 (Good) 16 (Good) 17 (Good) 15 (Good) 20 (Good) 15 (Good) 14 (Good)
pm25 5.1 (Good) 5.5 (Good) 8.3 (Good) 11 (Good) 7.5 (Good) 2.6 (Good) 0.48 (Good) 0.42 (Good) 1.2 (Good) 0.42 (Good) 1.2 (Good) 9.4 (Good) 5.5 (Good) 7 (Good) 9 (Good) 13 (Moderate) 6.1 (Good) 7.3 (Good) 6.8 (Good) 8.3 (Good) 11 (Good) 8.5 (Good) 8.3 (Good) 8.4 (Good) 7.8 (Good) 7.3 (Good) 4 (Good) 7.1 (Good) 6.3 (Good) - (Good) - (Good) - (Good) - (Good)
data source »

Quality of life in Araba / Álava

Green and Parks in the City

Araba / Álava 100%

Andorra: 69% France: 61% Italy: 53% Switzerland: 76% San Marino: 75%

particulate matter PM2.5

Araba / Álava 9 (Good)

Pleasure of spending time in the city

Araba / Álava 100%

Andorra: 84% France: 68% Italy: 56% Switzerland: 84% San Marino: 100%

particulate matter PM10

Araba / Álava 16 (Good)

Air Pollution

Araba / Álava 0%

Andorra: 29% France: 36% Italy: 50% Switzerland: 20% San Marino: 6.8%

Garbage Disposal

Araba / Álava 75%

Andorra: 89% France: 59% Italy: 51% Switzerland: 82%

Availability and quality of drinking water

Araba / Álava 94%

Andorra: 100% France: 73% Italy: 69% Switzerland: 90% San Marino: 100%

Cleanliness and tidiness

Araba / Álava 81%

Andorra: 75% France: 48% Italy: 45% Switzerland: 82% San Marino: 75%

Noise and Light pollution

Araba / Álava 31%

Andorra: 29% France: 54% Italy: 48% Switzerland: 38% San Marino: 75%

Water Pollution

Araba / Álava 19%

Andorra: 19% France: 39% Italy: 41% Switzerland: 19% San Marino: 0%
Source: Numbeo


LLODIO

Wednesday, January 17, 2024, 8:00 AM

NO2 15 (Good)

nitrogen dioxide (NO2)

PM10 3 (Good)

particulate matter (PM10) suspended dust

O3 78 (Moderate)

ozone (O3)

CO 100 (Good)

carbon monoxide (CO)

SO2 4 (Good)

sulfur dioxide (SO2)

PM2,5 1 (Good)

particulate matter (PM2.5) dust

1 (Good)

index_name_no

VALDEREJO

Wednesday, January 17, 2024, 8:00 AM

PM10 2 (Good)

particulate matter (PM10) suspended dust

PM2,5 1 (Good)

particulate matter (PM2.5) dust

CO 120 (Good)

carbon monoxide (CO)

NO2 2 (Good)

nitrogen dioxide (NO2)

SO2 3 (Good)

sulfur dioxide (SO2)

O3 85 (Moderate)

ozone (O3)

1 (Good)

index_name_no

TRES MARZO

Wednesday, January 17, 2024, 8:00 AM

PM2,5 1 (Good)

particulate matter (PM2.5) dust

NO2 12 (Good)

nitrogen dioxide (NO2)

CO 350 (Good)

carbon monoxide (CO)

SO2 4 (Good)

sulfur dioxide (SO2)

PM10 4 (Good)

particulate matter (PM10) suspended dust

9 (Good)

index_name_no

ES1502A

Wednesday, January 17, 2024, 8:00 AM

CO 90 (Good)

carbon monoxide (CO)

NO2 4 (Good)

nitrogen dioxide (NO2)

PM2,5 1 (Good)

particulate matter (PM2.5) dust

PM10 5 (Good)

particulate matter (PM10) suspended dust

11 (Good)

index_name_no

AGURAIN

Wednesday, January 17, 2024, 8:00 AM

NO2 8 (Good)

nitrogen dioxide (NO2)

O3 77 (Moderate)

ozone (O3)

PM10 2 (Good)

particulate matter (PM10) suspended dust

PM2,5 6 (Good)

particulate matter (PM2.5) dust

2 (Good)

index_name_no

EL CIEGO

Wednesday, January 17, 2024, 8:00 AM

O3 82 (Moderate)

ozone (O3)

PM10 6 (Good)

particulate matter (PM10) suspended dust

NO2 3 (Good)

nitrogen dioxide (NO2)

4 (Good)

index_name_no

LOS HERRAN

Wednesday, January 17, 2024, 8:00 AM

NO2 6 (Good)

nitrogen dioxide (NO2)

PM10 4 (Good)

particulate matter (PM10) suspended dust

PM2,5 20 (Moderate)

particulate matter (PM2.5) dust

4 (Good)

index_name_no

LLODIO

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm10 7.9 19 16 12 13 16 11 16
so2 3.3 4 4.1 3.4 3.4 4.1 3.5 4.8
no2 7 23 17 11 15 17 12 23
pm25 4 12 9.5 7 8.6 12 9 12
o3 70 12 9.4 25 25 18 25 13
co 120 530 543 310 434 342 403 430
no - 20 22 - - - - -

VALDEREJO

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
o3 75 61 54 56 73 56 59 58
co 128 143 308 228 168 238 190 184
pm25 2.1 2.6 0.5 2.7 2.8 5.7 3.2 3.4
so2 2.3 2.5 2.3 2.8 3 3.1 3.1 2.5
pm10 4.9 6.3 2.3 5.5 5.1 6.1 3.6 3.7
no2 2 2.2 2 2.1 2.3 3.8 2 3
no - 0.08 0 - - - - -

TRES MARZO

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm25 7.4 13 11 6.1 13 10 6.9 9.1
co 361 605 612 463 515 417 436 428
so2 4 4.6 4.8 4 4.8 4.1 4 4
pm10 6.4 15 14 8.4 16 9.7 7.7 11
no2 9.3 44 39 21 43 27 23 29
no - 32 46 - - - - -

ES1502A

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm25 4.6 13 11 7.9 17 9.5 9.1 10
no2 7.5 43 41 15 39 25 20 29
co 117 386 390 218 360 240 232 219
pm10 10 23 20 12 19 12 10 11
no - 36 52 - - - - -

AGURAIN

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
no2 5.2 22 24 20 33 17 15 13
o3 62 26 22 32 12 38 41 41
pm10 5.9 6.5 4.6 6.7 14 5.9 5.1 4.7
pm25 6.6 9.9 7.2 12 22 10 9 10
no - 9.6 17 - - - - -

EL CIEGO

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
o3 47 19 42 29 26 43 48 30
no2 4.1 12 4.8 6.7 6.7 5.3 4 9
pm10 8.6 7.6 3.1 8.5 9.1 7 5.8 8.7
no - 5.5 4.4 - - - - -

LOS HERRAN

index 2024-01-17 2024-01-16 2024-01-15 2024-01-14 2024-01-13 2024-01-12 2024-01-11 2024-01-10
pm10 6.9 13 13 9.8 16 9.9 9.5 9.2
pm25 27 24 11 7.2 14 8.6 8.6 8.2
no2 5.8 37 36 14 39 21 23 25
no - 21 43 - - - - -

ES1349A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 12 12 16 25 14 2.9 0.57 0.37 1.7 0.64 1.6 13 11 12 13 14 10 13 11 16 18 27 16 17 18 14 9.6 12 13 10 15 18 16
o3 33 36 35 25 23 3.4 1.9 1.2 3 1.2 3.7 28 38 43 40 32 29 12 29 27 21 18 29 25 35 43 55 33 19 26 23 24 30
so2 3.8 1.4 1.1 3.3 2.4 0.34 0.11 0.11 0.46 0.13 0.34 3.1 2.9 3.1 3.3 3.7 3.5 2.5 3.3 3.2 4.1 3.8 4.2 3.6 3 3.7 2.7 2.8 1.9 5.4 5.5 4.5 4.8
no2 9.6 8.8 13 16 18 2.8 0.77 0.55 2 0.58 1.3 15 16 13 22 25 20 18 16 19 19 15 11 11 16 14 13 21 19 16 23 21 20
co 290 273 299 299 327 87 15 8.5 25 9.8 23 216 207 207 265 281 255 340 234 220 250 224 205 204 215 227 235 250 260 - - - -

ES1489A

2017-09   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 6 5.6 8.9 10 7 1.8 0.97 0.78 1.6 0.73 3.2 9.1 4.3 6.6 10 14 7.3 7.9 6.9 10 13 16 15 14 14 12 8.6 4.6 9.6 9.3 8.4 8.5 8.1
co 157 176 175 159 168 49 21 12 25 14 32 143 87 179 218 220 195 187 194 203 214 165 203 172 151 213 244 248 230 235 243 218 140
no2 1.6 2.3 2.3 2.4 2.4 0.83 0.19 0.18 0.47 0.2 0.36 1.8 2.1 2.4 3.2 4.1 2.8 2.6 3 3.2 3.5 3 3.8 3.9 4.2 3.3 2.1 2.1 2.4 2.7 3 2.5 2
o3 49 63 75 65 62 17 9.8 5.4 12 5.7 15 78 85 95 88 75 67 57 59 63 73 61 57 56 75 77 89 79 61 67 66 61 67
pm25 3.9 3.2 6.3 6.2 4.5 1.5 0.49 0.36 1.1 0.41 0.95 8 3.5 5 6.3 9.8 4.8 3.4 4.1 6.1 8 5.9 7 5.8 5.4 6.4 2.9 4.2 4.1 - - - -
so2 1.9 1.6 2 2 1.6 0.56 0.2 0.09 0.17 0.08 0.15 0.95 0.89 1.4 2.1 2 2 - - - - - - - - - - - - - - - -

ES1492A

2017-09   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
no2 3.8 6 13 22 22 7 1.1 0.63 1.7 0.37 1.3 11 12 14 22 40 18 21 15 15 13 9.3 9.7 9.9 13 14 13 24 29 31 40 28 25
so2 2 2 1.3 1.3 3.3 0.94 0.2 0.1 0.23 0.1 0.45 3 3 2.8 0.38 2.6 2 2.2 1.1 1.1 1 1 1 0.92 0.96 0.99 1.7 2 1.7 1.3 1.6 1.1 0.53
pm25 8 7.6 10 17 9.5 3.4 0.35 0.38 1.2 0.39 1.4 12 7.2 9.1 13 18 8.3 11 11 12 16 13 9.8 13 11 8.3 4.1 9.5 8.9 - - - -
pm10 15 12 16 22 13 2.8 0.46 0.42 1.9 0.52 2.4 15 8.4 7.8 12 26 10 12 11 16 18 13 18 15 15 15 5.3 13 14 - - - -
co 160 167 214 237 264 88 12 7.5 22 10 64 360 190 194 175 315 255 313 195 178 163 105 99 106 130 140 201 297 271 - - - -

ES1502A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01
pm10 12 11 16 29 18 5.6 1.6 1.6 3.7 1.6 3.5 22 14 13 19 30 12 17 13 20 23 21 19 17 18 19 7.7 11 15
co 153 164 216 251 279 106 29 19 42 18 33 173 164 205 239 314 191 252 176 186 208 180 167 158 177 179 179 251 237
no2 7.1 8.6 17 28 29 10 2.3 1.3 3.2 0.89 1.8 12 16 19 28 43 17 21 18 15 16 11 8.6 11 14 15 11 23 24
pm25 4.4 5.8 8.4 13 - - - - - - - - - - - - - - - - - - - - - - - - -

ES1544A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
o3 54 65 68 47 43 5.6 5.5 2.1 6.1 2 7.8 54 62 75 64 58 55 26 55 51 47 44 49 45 57 69 74 54 41 43 45 47 54
pm10 8.4 8.4 12 17 13 3.8 1 0.52 1.5 0.39 1.4 17 11 12 13 31 8.9 8.1 8.5 16 20 13 20 16 17 21 5.5 10 8.7 - - - -
no2 3.7 3.9 8.1 17 18 6.4 1.3 0.4 0.96 0.28 0.56 5.5 6 7.3 15 20 12 17 8.2 8.1 9.2 7 4.2 5.3 6.9 7.9 9.3 14 22 - - - -

ES1672A

index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
pm10 9.8 7.1 11 15 11 2.4 0.6 0.78 1.9 0.67 2 16 8.1 8.6 15 20 4.4 6.5 7.7 9.8 13 11 8.2 8.6 8.1 13 4.7 6.2 5.6 5.2 12 15 13
o3 58 65 71 51 42 10 7.7 4.5 10 4.8 12 72 78 87 77 67 58 37 44 52 53 55 55 56 64 62 69 59 44 47 47 54 61
no2 2.6 3.8 5.4 7.8 10 2.5 0.59 0.38 0.49 0.27 0.76 4.2 4 3.1 5.7 8 5 8.3 7 5.6 4.6 2.6 2.5 3.2 3.4 4.7 4.7 5.7 4.8 5.3 8.8 6.5 6.4

ES1673A

2017-09   2020-05
pollution pm25 hikersbay.com
index 2020-05 2020-04 2020-03 2020-02 2020-01 2019-12 2019-11 2019-10 2019-09 2019-08 2019-07 2019-06 2019-05 2019-04 2019-03 2019-02 2019-01 2018-12 2018-11 2018-10 2018-09 2018-08 2018-07 2018-06 2018-05 2018-04 2018-03 2018-02 2018-01 2017-12 2017-11 2017-10 2017-09
no2 3 3.9 10 20 23 7.9 1.3 0.89 1.3 0.39 1.1 7.9 6.5 9.5 19 30 14 16 11 8 8.3 5.2 5.3 6.1 8.5 9.8 7.5 23 - 21 27 17 15
pm25 4.3 5.4 8.4 9.4 8.6 2.9 0.6 0.53 1.3 0.46 1.3 8.8 5.8 6.9 7.8 12 5.2 7.2 5.9 7 8.9 6.8 8.1 6.5 7.1 7.3 5 7.6 6 - - - -
pm10 7.9 5.8 12 19 13 3.8 0.98 0.8 1.9 0.76 2.1 15 10 11 14 - - - - - - - - - - - - - - - - - -

* Pollution data source: https://openaq.org (EEA Spain) The data is licensed under CC-By 4.0