To Disqualify a Nazirite: Ketuvot 7a
Impurity communicated via the air: Eruvin 30b-31a; Gittin 8a, 8b
Level of impurity in Surya: Gittin 8a, 8b
Allowing a Kohen to acquire this impurity in leaving Israel for a property claim against a Gentile, or to study Torah, or to marry: Eruvin 47a-b
Avoiding the Impurity
Entering the area in a moving box: Eruvin 30b-31a; Gittin 8b
