WASHINGTON (CBS 2) — Legislation to help 9/11 first responders sickened by toxic dust at Ground Zero was expected to face a key test vote in the Senate Wednesday.

Supporters of the James Zadroga Health Care Bill were in D.C., pushing for passage.

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“The James Zadroga 9/11 Health and Compensation Bill is crucial. It will finally provide justice for the thousands of brave responders and survivors who are sick because of their exposure to the toxic air during 9/11’s aftermath,” said Rep. Jerrold Nadler (D-Manhattan).

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Zadroga, a New York City police officer and first responder, died in 2006 from a respiratory disease contracted while working at Ground Zero.

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