According to the Shanghai Safety Management Methods for Dangerous Chemical Products, on days from June 20 to September 10 when forecasted temperatures exceed 30 celsius, flammable and explosive chemical products cannot be transported between 10 am and 4 pm and cannot be loaded between 8 am and 4 pm. The document lists 147 such products. The transportation and loading of other dangerous chemical products should also be carried out in accordance with this convention.