Environmental chemicals and experimental allergic conjunctivitis.

Correspondence : Mikio MIYATA at the above address. was given 2 days before the challenge, with variousconcentrationsbeingtested. Chloroform as trihalomethane in drinking water was administered for 2 days before the challenge. pDichlorobenzene was inhaled at one of several concentrations for 2 days before the challenge. The animals were sacrificed 30 min after the challenge by exsanguination under deep anesthesia. The conjunctivae were excised and any extravasated Evans blue in the tissue was extracted. The absorbance of Evans blue was