In Indonesia, the motorcycle is often the first choice for transportation, and has been especially popular as a taxi service since the creation of an online request system, known as Ojek Online. Unfortunately, this online employment has less engagement than traditional taxi companies and other public transportation companies in research area that can give guarantee for ensuring their drivers' safety and health. Many drivers are exposed to uncontrolled risks. Our research concerns drivers' health and safety factors. The goal is to determine which factors most affect a drivers' actions and safety. This study utilises both qualitative and quantitative research. Our qualitative research gathers in-depth health complaints made by drivers, especially in regard to their musculoskeletal symptoms. Our quantitative research focuses on other aspects that affect their ability to drive safely, such as their durations of rest, bad driving habits and work hours. The sampling method used in this research could be used to represent the entirety of the drivers' health and safety factors. The respondents in this research come from Depok, Bekasi, Bogor and Tangerang. The randomly sampled respondents agreed to answer the questions by themselves. The number of our respondents is 70. Our study found that the most influential factor affecting safe driving ability is fatigue. The results show that 62.85 percent of respondents experience fatigue while driving. Further, the data shows an imbalance among drivers in regard to age, work hours, total distance driven and rest time. Drivers' bad habits also negatively impact the safety of the rider. The most reported health effect was musculoskeletal symptoms in the lower part of the drivers' back. The second most reported health effect was in regard to the drivers' buttocks and wrists. The results of this research show that musculoskeletal disorders and fatigue affect the drivers' condition, which can negatively impact drivers' and customers' safety.

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Background: Coal still ranks the second largest source of total global energy demand, which is complemented by the high-risk nature of coal mining activity. Therefore, it is important to discuss the health issues of coal workers. One of the risks associated with coal mining activities is poor indoor air quality (IAQ) due to the high concentration of airborne pollutants. Methods: This study aims to evaluate the results of air quality measurements in the PT X office, and the method used was a descriptive approach with quantitative secondary data. Furthermore, the measured variables are NO2, SO2, CO2, CO, Pb, PM10, temperature, humidity, and noise. Conclusion: The results showed that there was an IAQ problem, namely noise, temperature, and humidity which exceed the recommendations. Therefore, the IAQ management implemented by PT X was still systematically and comprehensively developing.