when is it charge any certain limit to it?
The maximum tax amount per vehicle per day is 60 SEK
Stockholm
The maximum tax amount per vehicle per day is 60 SEK (6.53 EUR, ). 
who is broder knudtzon? A Norwegian merchant, politician and benefactor. when did he engage with politics? 1814 and how did he do that? He became foreign correspondent of his father's firm Hans Knudtzon & Co, which he owned together with his brother Christian and his brother-in-law Lorentz Johannsen. who is lorentz? A Norwegian merchant and member of the Norwegian Parliament. what does norwegian mean? UNANSWERABLE what was broder merchant of? UNANSWERABLE when did he start mercantile? On his return from Stockholm, he became foreign correspondent of his father's firm Hans Knudtzon & Co where is the place location where he returned from? Stockholm is the capital and most populous urban area of Sweden how is the air quality of the area? Used to have problematic levels of particulates (PM10) due to studded winter tires, but as of 2016 the levels are below limits, after street-specific bans. does the area charges for congestion? Stockholm has a congestion pricing system, Stockholm congestion tax. how much do they charge? 10–20 SEK
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Stockholm [SEP] Congestion charges
The results of the referendums were that the Stockholm Municipality voted for the congestion tax, while the other municipalities voted against it. The opposition parties won the general election and a few days before they formed government (Reinfeldt Cabinet) they announced that the congestion tax would be reintroduced in Stockholm, but that the revenue would go entirely to road construction in and around Stockholm. During the trial period and according to the agenda of the previous government the revenue went entirely to public transport.