Toxic gas leake toll rises to 8
 

KARACHI: Health and environment authorities investigating the lethal gas leakage in Keamari on Monday suspected that Hydrogen Sulphide, a highly poisonous gas that is a byproduct of crude oil and also generates in sewerage system, could be the probable cause of gas poisoning in the Railway Colony...http://feeds.feedburner.com/~r/com/cwEr/~4/Mtg6Igx8i08

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