README file
Data Set Title: “iSCAPE. WP3. Effects of Photocatalytic Coatings in reducing NOx pollutant concentrations. August 2018”
Data Set Author/s: Silvana Di Sabatino (Department of Physics and Astronomy, University of Bologna), ORCID (0000-0003-2716-9247); Erika Brattich (Department of Physics and Astronomy, University of Bologna), ORCID (0000-0001-8402-7611); Francesco Barbano (Department of Physics and Astronomy, University of Bologna), ORCID (0000-0002-4403-7070); Luca Torreggiani (ARPAE Emilia Romagna Environmental Protection Agency); Carla Barbieri (ARPAE Emilia Romagna Environmental Protection Agency)

Data Set Contributor/s: Beatrice Pulvirenti (Department of Industrial Engineering, University of Bologna), ORCID (0000-0002-2607-525X); Massimo Bacchetti (Department of Physics and Astronomy, University of Bologna

Data Set Contact Person/s: Silvana Di Sabatino (Department of Physics and Astronomy, University of Bologna), ORCID (0000-0003-2716-9247), silvana.disabatino@unibo.it; 

Data Set License: this data set is distributed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license, https://creativecommons.org/licenses/by/4.0/.

Publication Year: 2020
Project Info: iSCAPE (Improving the Smart Control of Air Pollution in Europe), funded by European Union, Horizon 2020 Programme. Grant Agreement num. 689954; https://www.iscapeproject.eu/.  
Data set Contents
The data set consists of:

•	1 tabular quantitative file saved in .ods format 
“iSCAPE_WP3_EffectsPhotocatalyticCoatings_August2018.ods”
•	1 README file 
“README_PROJECTiSCAPE_WP3_EffectsPhotocatalyticCoatings_August2018.rtf”
Data set Documentation
Abstract
This dataset contains the observations of air quality collected within one experimental campaign conducted in August 2018 at Lazzaretto campus of the University of Bologna to verify the effectiveness of photocatalytic coatings in reducing pollutant concentrations. The dataset also contains the meteorological data collected during non-synoptic periods, representing the ideal condition to assess the behavior of the local circulation and turbulence. This experimental field campaign was conducted under WP3 (“Planning and evaluation of PCS solutions”) of the iSCAPE project. 
Briefly, two parallel street canyons were instrumented for measurements of meteorology and turbulence variables at two height levels, while pollutant concentrations were monitored at ground level inside both canyons. After a first period of parallel contemporary measurements to verify the presence of intrinsic differences between the two canyons, one of the two canyons (Canyon A) was painted with photocatalytic coatings, while the other (Canyon B) was left untouched and used as reference canyon. 
This dataset is linked to the paper “The effect of photocatalytic coatings on NOx concentrations in real-world street canyons” by Brattich E. et al., which has been submitted for publication on “Science of the Total Environment” edited by Elsevier. If you use this dataset for your research or work purposes, we ask that you acknowledge us in the use of your data, which can be done by including a proper citation in any documents or publications using these data.

Content of the files: 
•	file iSCAPE_WP3_EffectsPhotocatalyticCoatings_August2018.ods contains air quality and meteorological observations in the two canyons. More specifically:
o	the sheet airquality_1min contains pollutant concentrations (NOx, NO2, NO, O3, and CO) observed in the two canyons at one-minute time resolution:
•	Date: Date provided in M/D/YYYY format
•	Time: Time provided in h:mm format (0-23)
•	NO_A: NO (nitrogen oxide) concentration (µg/m3) observed in canyon A
•	NO2_A: NO2 (nitrogen dioxide) concentration (µg/m3) observed in canyon A
•	CO_A: CO (carbon monoxide) concentration (mg/m3) observed in canyon A
•	O3_A: O3 (ozone) concentration (µg/m3) observed in canyon A
•	NO_B: NO (nitrogen oxide) concentration (µg/m3) observed in canyon B
•	NO2_B: NO2 (nitrogen dioxide) concentration (µg/m3) observed in canyon B
•	CO_B: CO (carbon monoxide) concentration (mg/m3) observed in canyon B
•	O3_B: O3 (ozone) concentration (µg/m3) observed in canyon B
o	the sheet PM contains daily average particulate matter (PM10 and PM2.5) concentrations observed in the two canyons:
•	Date: Date provided in M/D/YYYY format
•	PM10_A: PM10 concentration (µg/m3) observed in canyon A
•	PM25_A: PM2.5 concentration (µg/m3) observed in canyon A
•	PM10_B: PM10 concentration (µg/m3) observed in canyon B
•	PM25_B: PM2.5 concentration (µg/m3) observed in canyon B
o	the sheet CanyonA_surface_Meteo contains meteorological and turbulence variables collected in canyon A at ground level with 30 seconds time resolution:
•	date: date in YYYYMDD format
•	year: year in YYYY format
•	month: month in M format
•	day: day in DD format
•	hour (min): minutes from the beginning of the day
•	 ws (m/s): wind speed in m/s
•	wind direction (°): wind direction in degrees 
•	u (m/s): u wind component in m/s
•	v (m/s): v wind component in m/s
•	w (m/s): w wind component in m/s
•	Sonic T (°C): Sonic temperature in degrees Celsius
•	T (°C): Air temperature in degrees Celsius
•	RH (%): Air relative humidity (in percentage)
o	the sheet CanyonB_surface_Meteo contains meteorological and turbulence variables collected in canyon B at ground level with 30 seconds time resolution:
•	date: date in YYYYMDD format
•	year: year in YYYY format
•	month: month in M format
•	day: day in DD format
•	hour (min): minutes from the beginning of the day
•	 ws (m/s): wind speed in m/s
•	wind direction (°): wind direction in degrees 
•	u (m/s): u wind component in m/s
•	v (m/s): v wind component in m/s
•	w (m/s): w wind component in m/s
•	Sonic T (°C): Sonic temperature in degrees Celsius
•	T (°C): Air temperature in degrees Celsius
•	RH (%): Air relative humidity (in percentage)
o	the sheet CanyonA_rooftop_Meteo contains meteorological and turbulence variables collected in canyon A at ground level with 30 seconds time resolution:
•	date: date in YYYYMDD format
•	year: year in YYYY format
•	month: month in M format
•	day: day in DD format
•	hour (min): minutes from the beginning of the day
•	 ws (m/s): wind speed in m/s
•	wind direction (°): wind direction in degrees 
•	u (m/s): u wind component in m/s
•	v (m/s): v wind component in m/s
•	w (m/s): w wind component in m/s
•	Sonic T (°C): Sonic temperature in degrees Celsius
•	T (°C): Air temperature in degrees Celsius
•	RH (%): Air relative humidity (in percentage)
•	Shortwave rad (W/m2): Shortwave radiation in W/m2
•	Longwave rad (W/m2): Longwave radiation in W/m2
•	Net rad (W/m2): Net radiation in W/m2
o	the sheet CanyonB_rooftop_Meteo contains meteorological and turbulence variables collected in canyon B at ground level with 30 seconds time resolution:
•	date: date in YYYYMDD format
•	year: year in YYYY format
•	month: month in M format
•	day: day in DD format
•	hour (min): minutes from the beginning of the day
•	 ws (m/s): wind speed in m/s
•	wind direction (°): wind direction in degrees 
•	u (m/s): u wind component in m/s
•	v (m/s): v wind component in m/s
•	w (m/s): w wind component in m/s
•	Sonic T (°C): Sonic temperature in degrees Celsius
•	T (°C): Air temperature in degrees Celsius
•	RH (%): Air relative humidity (in percentage)
•	Shortwave rad (W/m2): Shortwave radiation in W/m2
•	Longwave rad (W/m2): Longwave radiation in W/m2
•	Net rad (W/m2): Net radiation in W/m2
iSCAPE Dataset Reference Numbers
The datasets here presented are related to the following iSCAPE dataset reference numbers:
•	DS_TS_038
•	DS_TS_039
•	DS_TS_040
•	DS_TS_041
•	DS_TS_042
•	DS_TS_043
•	DS_TS_046