What is the weight of total TPH in one gallon of gasoline?

Total Petroleum Hydrocarbons (TPH) in gasoline can vary depending on the specific formulation and composition of the fuel. On average, gasoline typically contains around 10-15% TPH by weight. Given that one gallon of gasoline weighs approximately 6 to 6.3 pounds, the total weight of TPH in one gallon would be roughly 0.6 to 0.9 pounds. However, this is a general estimate and can vary based on the gasoline's specific characteristics.