One way to characterize these human RF-EMF exposure changes is represented by monitoring the dose of RF-EMF absorbed in tissues and organs using computational simulations [22; 23]. As for 5G exposure assessment based on computational methods, up until now, efforts have been made to assess human exposure to plane waves, dipoles and array antennas operated at the FR1 and FR2 ranges both in near-field and far-field conditions in mobile network communication scenarios [24; 25; 26; 27; 28; 29; 30]. To the best of the authors' knowledge, no computational studies have addressed the specific 5G-V2X communication scenario and its peculiar characteristics, i.e., the use of FR1 and FR2 bands and the use of novel 5G-V2X array antennas with beamforming capability. As described in a recent literature survey [31] on RF human exposure in the connected car due to V2X, car sensing and intra-vehicle wireless communication, the majority of previous computational studies investigated the exposure levels of drivers and passengers from generic personal wireless communication technologies used inside the vehicle, such as mobile phones, Bluetooth and WiFi devices [32; 33; 34]. Only a few studies assessed the field exposure generated by antennas working at frequencies used in V2X communications [35; 36; 37; 38]. For examples, in the study of [PERSON] et al. [35], the EMF distributions at the driver seat were evaluated for various positions of a multiband 4G/5G antenna that can be easily integrated into the front and rear glasses of vehicles; in the first paper of [PERSON] et al. [36], the levels of the specific absorption rate, that is, the power absorbed per unit mass of the body, for homogeneous models in driver and passenger positions were evaluated considering car antennas external quarter-wave monopoles at 400 MHz and 900 MHz, with an input power of 1 W, showing exposure values well below the recommended limits [39]. In the second paper of [PERSON] et al. [37], a preliminary estimation was conducted about the possible contributions in terms of exposure from a number of typical automotive systems based on different wireless communications technologies (i.e., 5.8 GHz antenna, mobile phone, Wi-Fi, Bluetooth, radar systems), showing that the number of sources present in the automotive environment could produce sufficiently high individual exposure levels that should be monitored. Finally, in the paper of [PERSON] et al. [38], the exposure of a driver in a connected car equipped with four V2V antennas mounted on the car roof was assessed in terms of the specific absorption rate. The antennas were operated at the standard V2V communication frequency in the ITS 5.9 GHz band, according to the IEEE 802.11p wireless protocol for mobility, with an input power of 30 W; the results obtained were again well below the basic restrictions for RF exposure for the general public [39]. None of these previous studies were focused on the assessment of RF exposure in the specific 5G-V2X exposure scenario. In the present study, we explore, using computational simulations based on the FDTD (Finite-Difference Time-Domain) method, the RF exposure generated by vehicular 5G-V2X communication by assessing the exposure levels for a person (e.g., a road user) in near proximity to a car equipped with two 5G-V2X antennas at 3.5 GHz, in the FR1 frequency range. We decided to evaluate the exposure levels of pedestrians since the two 5G-V2X antennas were mounted externally on the car body and the main beam is directed primarily towards the surrounding environment. Exposure levels were calculated in a realistic and detailed 3D human body model using a computational approach and were expressed in terms of the specific absorption rate mediated over the entire body (SAR\({}_{\text{wb}}\)) and over 10 g (SAR\({}_{\text{10g}}\)) in selected tissues, as specified in the ICNIRP guidelines [39].