Produced water is chemically very complex. The process of producing and processing produced water causes changes in temperature and pressure. The addition of treating chemicals, along with the presence of coproduced gas, oil, and likely solids, changes the produced-water properties and behavior.
Many times, relative humidity can be misleading. For example, a temperature of 30 and a dew point of 30 will give you a relative humidity of 100%, but a temperature of 80 and a dew point of 60 produces a relative humidity of 50%. It would feel much more humid on the 80 degree day with 50% relative humidity than on the 30 degree day with a 100% relative humidity.
For example, at approximately 27 Â°C (81 Â°F), the heat index will agree with the actual temperature if the relative humidity is 45%, but at 43 Â°C (109 Â°F), any relative-humidity reading above 18% will make the heat index higher than 43 Â°C.