The effectiveness of using germicidal UV is purely depended on the length of time a microorganism is exposed to light. The wavelength and the intensity of the light are also other important determinants of the entire result. Other things like the presence of particles can play a significant role in determining the right results. If you want to obtain more accurate results, you have to pass the water or air several times through the UV in order to detect as many microorganisms by the UV light as possible. Many times sterilization is quoted as being achievable. Most businesses know that it is not easy to achieve such results as sterilization and therefore opt to use the word disinfection. Other companies will use the term 99% efficient. A cell can use UV light to repair damaged DNA. They do that through what is known as light and dark repair. If you are to get the correct results you have to know the line of sight of exposure of the microorganisms to the UV light. With soil surrounding the bulb the effectiveness will be significantly affected. That will mean that the bulbs have to be cleaned periodically if the results will be more accurate.
At times they will also have to be replaced if you are to get results that are close to the right thing. The lifespan of the germicidal bulbs depends on the design. They also rely on the various materials that are used. The airflow cools the lamp, and that contributes to lower the UV output. Therefore it means that it is important to shield the lamps flow airflow so that cooling does not take effect because if it does it will lower the effectiveness of the UV. Some of the things that can increase the effectiveness are things like use of reflection. One of the most efficient materials when it comes to reflection is aluminum. If you want to evaluate the efficiency of the UV in water disinfection, you can calculate the dose.
When carrying out these operations care must be exercised because of the process is not done in the right way it will give you entirely different results. When you use the wrong results, it means that the decisions that are made will have different effects because they are based on incorrect results. That will mean that the products made after the finds should not be trusted depending on how much are the results affected by the interference of the process. That is why regulatory bodies need to ensure everything goes in the right way.