What was found
AFTER TAKEOFF AND CLIMBING THROUGH ROUGHLY 10,000 FT, PASSENGER INFORMED US OF A BAD ODOR AND HAZE IN CABIN. BOTH CREW MEMBERS LOOKED BACK AND SAW A WHITE/BLUEISH HAZE ALONG WITH A STRONG PUNGENT ODOR THAT WAS DIFFICULT TO IDENTIFY. PASSENGER COMPLAINED OF BURNING TO EYES. COPILOT WENT BACK TO TRY TO IDENTIFY THE SOURCE. RAN ABNORMAL CHECKLIST FOR ENVIRONMENTAL SYS SMOKE AND ODOR OF UNKNOWN SOURCE. APU WAS OFF, PRESS SOURCE SELECTOR WAS SWITCHED TO LAND DIVERTED. R & R RT ENGINE IAW MM 71-00-30. OPS & LEAK CHECKED GOOD. NO ODOR IN CABIN.