ðˈɛɹfoːɹ, fˌoʊɾoʊkˈɛmɪkəl kwˈɛntʃɪŋ ˈɪŋkɹiːsᵻz wɪððə tˈaɪm ʌv ɪlˌuːmᵻnˈeɪʃən, wɪð ɐ kˌɔːɹɪspˈɑːndɪŋ ˈɪŋkɹiːs ʌvðə flʊɹɹˈɛsəns ɪntˈɛnsᵻɾi.
Therefore, photochemical quenching increases with the time of illumination, with a corresponding increase of the fluorescence intensity.