The city is encouraging citizens to take 15 minutes out of their day to pick up litter that is left over from winter. The Capital City Clean Up's 15 to Clean Challenge kicked off at Strathcona High School Tuesday morning.

Students and teachers at Strathcona High School have accepted the challenge to spend 15 minutes picking up litter around the school during their lunch hour.

"I think kids our age should get more involved with it," said student Anastasia Rozhdestvensky.

This week the city is asking citizens to challenge themselves, along with their neighbours, friends and family to take 15 minutes to pick up litter or report graffiti by calling 311. The city says this year, challengers will have a chance to win an iPad 2 by registering their participation online.

"Just take 15 minutes out of their day, whether they are at work, on a coffee break, or going out for a walk in the evening -- take a bag with you and pick up a few things," said Don Belanger with Capital City Clean Up.

The Capital City Clean Up program involves several initiatives, including Adopt-A-Block, and the River Valley Clean Up, which launch this weekend.

Edmontonians interested in participating in any of the spring clean-up programs can visit www.edmonton.ca/capitalcitycleanup