There are many different types of plastics in single-use sanitary products and most of them release chemicals which can be unhealthy for you.
Going green, period. - Reusable Menstrual Products - The City
Single-use menstrual products and their alternatives
Sustainable Menstruation- The Impact of Menstrual Products on the
Sustainability, Free Full-Text
A Bloody Huge Problem: The Environmental Impact of Period Products
Menstrual products and sustainability - Recyclopaedia
Eco-friendly menstrual products - David Suzuki Foundation
Which Period Products Are Best for the Environment?
Pads and tampons can harm the environment. What's the alternative