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| || | || | || | || | |  | ||   / _ \\  \ \\ / // 
| '--' || | || | || | |/\| ||  / //\ \\  \ \/ //  
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|_|| |_||  \____//  |_// \_|| |_||  |_||   \//    
`-`  `-`    `---`   `-`   `-` `-`   `-`     `

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Text this: Impact of vehicular tailpipe characteristics on roadside environmental quality