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The MURC index is 110

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Robert Faygo
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The MURC index is 110

Unread post by Robert Faygo »

Anyone remember the Most Undesirable Respirable Contaminants Index? Was this truly unique to Detroit?

It apparently started in the late 60s and I remember it in the 70s. The index was used to inform the status of the quality of the air via radio and TV. Anyone else remember hearing / seeing "The Murc is 90" - or better yet when it got dumped?

Apparently this was the breakdown
Index number: Description
0-30: Extremely Light Contamination
31-60: Light Contamination
61-90: Medium Contamination
91-120: Heavy Contamination
>120: Extremely Heavy Contamination
Wellllll... la de frickin da
BKRPDM
Posts: 324
Joined: Mon Apr 13, 2009 6:40 pm

Re: The MURC index is 110

Unread post by BKRPDM »

“…Detroit 96, Cleveland 93, Toledo 95, Windsor 88…or 31 Celsius…at the present time the MURC index is 100…this is Grant Hudson…CKLW 20/20 News…now back to Pat Holiday on a million-dollar weekend…<CKLW!>….”
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Robert Faygo
Posts: 1097
Joined: Sun Dec 20, 2020 5:26 pm
Location: Van Down By The River
Contact:

Re: The MURC index is 110

Unread post by Robert Faygo »

BKRPDM wrote: Tue Jun 30, 2026 8:05 pm “…Detroit 96, Cleveland 93, Toledo 95, Windsor 88…or 31 Celsius…at the present time the MURC index is 100…this is Grant Hudson…CKLW 20/20 News…now back to Pat Holiday on a million-dollar weekend…<CKLW!>….”
That's what I remember too, probably thanks to airchecks of the Big 8. What I don't remember is when or why that bit of data stopped being important enough to communicate like that.

It is kinda cool to know that Detroit media probably helped shape today's AQI.
Wellllll... la de frickin da
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