Zero context. The first 3 could be peek traffic hours on a day with high heat and no wind. And the fourth a Sunday during some national event that people watched on TV, while a storm blows away most of the pollution.
Or they could be completely fake, as there is no source stated.
A complete lack of context it’s a pretty worthless, very low effort post IMO.
Edit:
Thanks for the downvotes, because linking the source would have been Soooo difficult. /s
Reading the annotations on each of the plots, these are all average NOx concentrations of the labelled year, not point measurements - as you are insinuating. Furthermore, the color scales match up too. (edit) Do note: the more recent plot is zoomed in though and scales are much less clear!
I think it is fair to say that recent policy changes, like rejecting private vehicles from the center and promoting active transportation work. Though aftereffects of COVID (work-from-home) may be a contributor too.
Yeah about that, the text is incredibly smeared, and it’s in french. Pardon me for not knowing french. 😜
not point measurements - as you are insinuating.
Which would have been about equally obvious to many if the text was in Swahili!! No matter how clear.
Funny how people reward such lazy posting, where adding a link to the source could have cleared it up easy.
Pictures could be completely fake for all we know without a source.
Zero context. The first 3 could be peek traffic hours on a day with high heat and no wind. And the fourth a Sunday during some national event that people watched on TV, while a storm blows away most of the pollution.
Or they could be completely fake, as there is no source stated.
A complete lack of context it’s a pretty worthless, very low effort post IMO.
Edit:
Thanks for the downvotes, because linking the source would have been Soooo difficult. /s
Reading the annotations on each of the plots, these are all average NOx concentrations of the labelled year, not point measurements - as you are insinuating. Furthermore, the color scales match up too. (edit) Do note: the more recent plot is zoomed in though and scales are much less clear!
I think it is fair to say that recent policy changes, like rejecting private vehicles from the center and promoting active transportation work. Though aftereffects of COVID (work-from-home) may be a contributor too.
Yeah about that, the text is incredibly smeared, and it’s in french. Pardon me for not knowing french. 😜
Which would have been about equally obvious to many if the text was in Swahili!! No matter how clear.
Funny how people reward such lazy posting, where adding a link to the source could have cleared it up easy.
Pictures could be completely fake for all we know without a source.