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Situated in the southern West Bank, Hebron serves as a pivotal urban center perched prominently within the Judean Mountains. At an elevation of approximately 930 meters above sea level, the city experiences a Mediterranean climate characterized by high-altitude cooling, yet its rugged, undulating topography significantly dictates local air circulation patterns. The city is nested within a series of limestone valleys and ridges, creating a bowl-like effect that can trap atmospheric pollutants during periods of stagnant air movement. This elevated position places Hebron far from the moderating influences of the Mediterranean Sea, subjecting it to distinct continental climatic pressures. The surrounding landscape consists of terraced hillsides, historical vineyards, and olive groves, which provide a semi-rural buffer but offer little resistance to the dust-laden winds arriving from the Negev Desert to the south. Urbanization in Hebron is dense and historic, with narrow, winding streets in the Old City contrasting with sprawling residential expansion on the periphery. The city lacks a centralized, modern industrial zone, yet decentralized light manufacturing, automotive repair workshops, and stone-cutting facilities contribute to localized particulate matter concentrations. Furthermore, the absence of comprehensive municipal waste management systems often leads to small-scale, localized burning, which degrades air quality within specific neighborhoods. The urban-rural gradient is abrupt; the city core is intensely built-up, while the immediate outskirts transition rapidly into arid, rocky terrain. Consequently, the interaction between complex mountain topography and human-induced emissions creates a unique microclimatic environment where air quality is heavily influenced by both regional wind patterns and localized combustion sources.

Hebron’s air quality fluctuates significantly across the seasons, governed by the interplay of Mediterranean weather systems and regional topography. During the winter months, from December through February, the city experiences frequent rainfall and cool temperatures, which effectively scrub the atmosphere of suspended particulate matter. However, these cooler months also see an increase in residential heating emissions, often from traditional fuel sources, which can lead to localized degradation of air quality during calm, clear nights. As spring arrives, the risk shifts toward desert-borne dust events, known as the Khamsin winds. These intense, hot, and dry winds sweep from the Negev, transporting fine sand and dust particles that drastically reduce visibility and elevate particulate levels, making spring a challenging period for individuals with respiratory sensitivities. Summer, spanning June to August, brings stable, hot, and dry conditions. While the lack of precipitation might suggest cleaner air, the prevailing wind patterns can often result in the accumulation of ground-level ozone, particularly during intense heatwaves. Meteorological temperature inversions, common in the high-altitude terrain of the Judean Mountains, frequently trap pollutants near the surface during the early morning hours, leading to localized spikes in air contaminants. Autumn offers a transitional period where temperatures moderate and the atmosphere remains relatively stable. For sensitive groups, including those with asthma or chronic obstructive pulmonary disease, the spring dust events and the stagnant summer mornings represent the most critical times to limit outdoor exertion. Staying informed about meteorological forecasts is essential for maintaining health throughout the year in this mountain city.