ATTRIBUTE SURVEY_YEAR CHANGE
altitude 1984 INTRODUCTION
altitude_m 2001 INTRODUCTION
col 2001 INTRODUCTION
col 2018 DISCONTINUED
compound 1984 INTRODUCTION
country 1984 INTRODUCTION
date_monitoring_1st 1984 INTRODUCTION
date_monitoring_1st 2016 RENAME to date_monitoring_first
date_monitoring_first 2018 DISCONTINUED
date_monitoring_last 1984 INTRODUCTION
date_monitoring_last 2018 DISCONTINUED
elevation_lowest2500 2001 INTRODUCTION
elevation_lowest5000 2001 INTRODUCTION
latitude 1984 INTRODUCTION
longitude 1984 INTRODUCTION
manufacturer 2001 INTRODUCTION
measurements 1984 INTRODUCTION
measurements 2018 DISCONTINUED
other_observations 1984 INTRODUCTION
plot 1984 INTRODUCTION
sampler 1984 INTRODUCTION
sampler_active 1984 INTRODUCTION
sampler_active 2000 DISCONTINUED
sampling_height 2011 INTRODUCTION
Sequence 1984 INTRODUCTION
station 1984 INTRODUCTION
station 2000 DISCONTINUED

ATTRIBUTE SURVEY_YEAR CHANGE
altitude 1984 INTRODUCTION
altitude_m 2001 INTRODUCTION
classification 1984 INTRODUCTION
classification 2000 DISCONTINUED
col 2001 INTRODUCTION
col 2018 DISCONTINUED
compound 1984 INTRODUCTION
compound 2018 DISCONTINUED
country 1984 INTRODUCTION
date_monitoring_1st 1984 INTRODUCTION
date_monitoring_1st 2016 RENAME to date_monitoring_first
date_monitoring_first 2018 DISCONTINUED
date_monitoring_last 1984 INTRODUCTION
date_monitoring_last 2018 DISCONTINUED
elevation_lowest2500 2001 INTRODUCTION
elevation_lowest2500 2018 DISCONTINUED
elevation_lowest5000 2001 INTRODUCTION
elevation_lowest5000 2018 DISCONTINUED
hour_end 2001 INTRODUCTION
hour_end 2018 DISCONTINUED
hour_start 2001 INTRODUCTION
hour_start 2018 DISCONTINUED
inlet_height 1984 INTRODUCTION
latitude 1984 INTRODUCTION
longitude 1984 INTRODUCTION
other_observations 1984 INTRODUCTION
plot 2001 INTRODUCTION
sampler 1984 INTRODUCTION
Sequence 1984 INTRODUCTION
station 1984 INTRODUCTION
station 2000 DISCONTINUED
vegetation 1984 INTRODUCTION
vegetation 2000 DISCONTINUED

ATTRIBUTE SURVEY_YEAR CHANGE
altitude 2001 INTRODUCTION
compound 2001 INTRODUCTION
country 2001 INTRODUCTION
date_end 2001 INTRODUCTION
date_start 2001 INTRODUCTION
detection_limit 2001 INTRODUCTION
hour_end 2001 INTRODUCTION
hour_start 2001 INTRODUCTION
inlet_height 2001 INTRODUCTION
latitude 2001 INTRODUCTION
longitude 2001 INTRODUCTION
manufacturer 2001 INTRODUCTION
mean 2001 INTRODUCTION
mean_cont 2001 INTRODUCTION
other_observations 2001 INTRODUCTION
percentage_valid 2001 INTRODUCTION
plot 2001 INTRODUCTION
replicates 2001 INTRODUCTION
Sequence 2001 INTRODUCTION
stdev 2001 INTRODUCTION

ATTRIBUTE SURVEY_YEAR CHANGE
compound 2001 INTRODUCTION
country 2001 INTRODUCTION
date_end 2001 INTRODUCTION
date_start 2001 INTRODUCTION
other_observations 2001 INTRODUCTION
plot 2001 INTRODUCTION
sampler 2001 INTRODUCTION
Sequence 2001 INTRODUCTION
value 2001 INTRODUCTION
value 2016 CHANGED UNITS (O3 has to be submitted in μg/m³ from 2016 onwards)

ATTRIBUTE SURVEY_YEAR CHANGE
compound 2001 INTRODUCTION
country 2001 INTRODUCTION
date_end 2001 INTRODUCTION
date_start 2001 INTRODUCTION
other_observations 2001 INTRODUCTION
plot 2001 INTRODUCTION
sampler 2001 INTRODUCTION
Sequence 2001 INTRODUCTION
value 2001 INTRODUCTION
value 2016 CHANGED UNITS (O3 has to be submitted in μg/m³ from 2016 onwards)

ATTRIBUTE SURVEY_YEAR CHANGE
country 2001 INTRODUCTION
date 2001 INTRODUCTION
date 2016 RENAME to date_aq
hour 2001 INTRODUCTION
NH3 2001 INTRODUCTION
NO2 2001 INTRODUCTION
o3 2016 CHANGED UNITS (O3 has to be submitted in μg/m³ from 2016 onwards)
O3 2001 INTRODUCTION
other_observations 2001 INTRODUCTION
plot 2001 INTRODUCTION
sampler 2001 INTRODUCTION
Sequence 2001 INTRODUCTION
SO2 2001 INTRODUCTION