28530
The results showed that exposure to 10ng / L or above resulted in adverse effects on hatchability and time to hatching , and the number of hatched females was twice that of males at 10ng / L or above .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None