SSSAJ -- Ishiguro and Nakajima 64 (3): 813 Figure IG5

Fig. 5 Effect of pH on light transmittance. ( ${circ}$ , SO^2-₄ 1 mol_c m^-3; ${triangleup}$ , SO^2-₄ 0.1 mol_c m^-3; •, NO^-₃ 1 mol_c m^-3; ${blacktriangleup}$ , NO^-₃ 0.1 mol_c m^-3)