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Indian startup captures car exhaust and turns it into ink

Graviky Labs finds a sustainable business model in capturing particulate matter

Artist Pavithra Chowdappa displaying two artworks produced using AIR-INK derived from polluted air (Photo by Anuradha Sharma)

BANGALORE At a cafe in Bangalore's central district, artist Pavithra Chowdappa doodles on canvas with a marker labeled AIR-INK.

"This is a special marker," she says, making black strokes across the white surface. "It's the only environmentally friendly ink around. And it's so smooth, and nice -- in fact, better than many others in the market -- that one can hardly guess it's sourced from air pollution."

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