<p>Persistent organic pollutants (POPs) and polycyclic aromatic hydrocarbons (PAHs) were investigated in the atmosphere of Admiralty Bay, Antarctic Peninsula. Sampling was conducted using semi-permeable membrane devices (SPMDs) deployed during the austral summers of 2023 and 2024, and the spring of 2023. Contaminant profiles, temporal variations, and potential sources were evaluated to gain a deeper understanding of pollutant dynamics in this remote region. The presence of atmospheric contaminants was influenced by long-range atmospheric transport (LRAT), local emissions, volatilization from snow, soil, and water, short-term meteorological variations, and degradation processes. Hexachlorobenzene was the most abundant and frequently detected compound (mean: 2.88 ± 0.62 ng g⁻¹ triolein), primarily associated with LRAT. In contrast, other organochlorine pesticides (mean: 0.18 ± 0.22 and 0.27 ± 0.45 ng g⁻¹ triolein for aldrin and dieldrin, respectively) and polybrominated diphenyl ethers (mean: 0.02 ± 0.03 ng g⁻¹ triolein) are likely to have originated from secondary sources. The detection of low-chlorinated polychlorinated biphenyls (mean: 0.42 ± 0.41 ng g⁻¹ triolein) at higher altitudes during spring and summer suggests LRAT as a significant transport mechanism. PAHs (mean: 2.39 ± 2.73 ng g⁻¹ triolein) appeared to be more strongly influenced by local sources, with enhanced volatilization and increased human activity during the summer complicating source attribution. Overall, POPs distribution was predominantly shaped by LRAT, while local processes drove PAHs concentrations. The use of SPMDs proved to be an effective passive sampling approach for assessing organic pollutants in remote polar environments. These findings underscore the need for long-term monitoring and international efforts to control emissions. This study supports the goals of the Madrid Protocol and highlights the vulnerability of polar regions to global contamination.</p>