Definitions

1. noun

Abbreviation for tons per day, often used to measure the production or consumption of materials, such as coal or oil.

“The mine’s production rate was 500 tpd, making it one of the largest in the region.”

2. noun

Abbreviation for tons per day, often used to measure the production or consumption of materials, such as waste or emissions.

“The city’s waste management plan aimed to reduce its tpd output by 20% within the next year.”