οὐκ ἔστι γῆρας τοῦδε τοῦ μιάσματος → that pollution never wears out, that pollution can never grow old
δροσερός, δροσώδης, ἀφῆλιξ, ἀγώρις, ἄγωρος, αἰζηός, ἀκμηνός