I only know about the intestinal transporter; not sure if anyone tested if it's expressed in lung...but for a first idea you could try expression databases.
Here is the article about the intestinal heme transporter:
Identification of an intestinal heme transporter.
AuthorsShayeghi M, et al. Show all Journal
Cell. 2005 Sep 9;122(5):789-801.
Affiliation
Department of Life Sciences, Nutritional Sciences Research Division, Franklin-Wilkins Building, Kings College London, 150 Stamford Street, London SE1 9NN, UK.