Wełnowiec-Józefowiec () is a district of Katowice, located in the northern part of the city, on the Chorzów Hills. Its boundaries largely correspond to those of the historical , while the district itself consists of two main historical settlements: () and (), as well as several workers' colonies, including , , and .
The first records of settlement in Wełnowiec-Józefowiec date back to the 17th century. Initially, Wełnowiec was mainly agricultural, but thanks to shallow deposits of coal, mining began to develop, and the first mine was established there at the end of the 18th century. Later, the metallurgical industry also became established. One of the largest zinc smelters in Upper Silesia – the Hohenlohe Zinc Smelter, built in 1873 – was founded there (later known as the Silesia Metallurgical Works). Józefowiec was founded in 1826 and incorporated into Gmina Wełnowiec in 1924, which itself became a part of Katowice in 1951.
Today, Wełnowiec-Józefowiec is mainly a residential area with a well-developed industrial sector (home to companies such as Fasing and ). The main thoroughfare of the district is Wojciech Korfanty Avenue, connecting Śródmieście with Siemianowice Śląskie. A tram line also runs along the avenue. In 2020, Wełnowiec-Józefowiec had a population of 13,741. Geography Location Administratively, Wełnowiec-Józefowiec is located in the Silesian Voivodeship and is one of the districts of Katowice (no. 11), situated in the northern part of the city, approximately 3 km north of its center. It borders Siemianowice Śląskie to the north and east, three other districts of Katowice to the south – Bogucice (a short section east of Cedrowa Street), Koszutka, and Dąb – and Silesian Park in Chorzów to the west. The district's boundaries are: from the north – it simultaneously forms the boundary between Katowice and Siemianowice Śląskie, running along ; from the east – a continuation of the boundary between Katowice and Siemianowice Śląskie; from the south – from the border between Katowice and Siemianowice Śląskie, it follows Cedrowa Street. Further on, the border is formed by Jesionowa and streets (at the latter, south of the main roadway, encompassing the buildings on both sides within the boundaries of Wełnowiec-Józefowiec) to the intersection with C. K. Norwid Street, then it turns southwest, following the route of the former sand railway tracks to ; from the west – northward along P. Ściegienny Street, then west along and, at the Dąb branch of the , it runs north, bypassing the buildings on Agnieszki Street to the east. At the intersection with J. Mikusiński Street, the boundary between Wełnowiec and Józefowiec forms the border between Katowice and Chorzów, which continues north along to the junction with Telewizyjna Street.
According to physio-geographical regionalization, the entire district is located in the mesoregion, which forms the southern part of the Silesian Upland, itself a part of the subprovince. In terms of historical regions, Wełnowiec-Józefowiec is located in the eastern part of Upper Silesia.
Geology In terms of geological structure, Wełnowiec-Józefowiec is located in the in an area with horst structures. At the turn of the Devonian and Carboniferous periods, the Paleozoic bedrock of the Silesian Upland was disturbed by the formation of a sinkhole, which during the Carboniferous was filled with conglomerates, sandstones, and shales containing bituminous coal deposits, formed 300 million years ago on the peat-covered shores of vast shallow lakes. The oldest Carboniferous strata, whose outcrops occur in the Katowice area and are also present in Wełnowiec-Józefowiec, include the Grodziec (Poręba) strata (Namurian A). They occur in the form of isolated patches. In , these strata are characterized by a predominance of shale over sandstone and contain up to 20 thin coal seams, several of which exceed 1 m in thickness. The Grodziec layers cover the western part of Józefowiec – west of and the area of the former ZM Silesia. In the area of the so-called voivodeship colony on and east of the former steelworks, saddle layers are present, and along the border with Siemianowice Śląskie and near the border with Koszutka, Ruda layers are found.
The main characteristics of the Wełnowiec-Józefowiec landscape were formed during the Tertiary period. At that time, intense chemical weathering and denudation were taking place, and rocks of various ages were eroded. Orogenic movements also influenced the landscape. In the Pliocene, the main features of the terrain were already similar to those of today. West of the former Wełnowiec Stream, along present-day Józefowska Street, the district's area is composed of Pleistocene sandy eluvium and silty till.
In the Quaternary, Wełnowiec-Józefowiec was likely covered by the Scandinavian ice sheet twice: during the oldest Mindel glaciation and during the Riss glaciation. Sediments from the earlier glaciation were removed during the interglacial. In the Holocene, Pleistocene deposits were eroded, especially in river valleys, and young erosional valleys formed on the slopes. Rivers created low terraces in several stages as a result of cutting through the aggradation deposits. After the deforestation of the slopes, increased soil denudation began. Holocene river deposits extend parallel to the west up to the present-day Wojciech Korfanty Avenue.
Terrain
Wełnowiec-Józefowiec is located in the southern part of the Silesian Upland, within the mesoregion. The district is characterized by relatively significant variation in its topography. The highest point is located on the border between Katowice and Siemianowice Śląskie, at the site of the Bytków TV Tower – it reaches an elevation of 316 m above sea level. From this point, the terrain slopes southward along Wojciech Korfanty Avenue and Józefowska Street. Areas above 300 m above sea level also include parts of the , a section of , and the tram terminus near . The lowest point (approximately 270 m above sea level) is located on the border of Wełnowiec-Józefowiec and Dąb at Józefowska Street. The elevation difference between the lowest and highest points of the district is 45 meters.
Geomorphologically, the entire Wełnowiec-Józefowiec area is located on the Chorzów Hills, which are part of the Bytom Plateau. They form a series of undulating, rounded, or flattened elevations. Toward the Rawa river valley, they are cut by valley depressions, including, the Wełnowiec ditch within the district with its fairly steep slopes and flat bottoms.
Wełnowiec-Józefowiec has been heavily altered by human activity due to settlement, industry, and the legacy of former zinc smelting operations. The area contains both spoil tips and post-mining subsidence, which reaches up to 6 meters in the district. In the vicinity of Konduktorska Street, there is a disused smelter waste dump, created by the now-defunct zinc smelter, colloquially known as the Wełnowiec Alps. Additionally, the area has man-made landforms in the form of road and railway embankments. Almost the entire district has been anthropogenically leveled.
Soils In Wełnowiec-Józefowiec, the soils have been significantly altered by human activity, resulting in the formation of anthrosols, for which human activity is the main soil-forming factor. Throughout the entire district, these soils developed from sandstones and, due to urban development and industrial activity, have been largely devastated and degraded. They are also contaminated with heavy metals (including those located in forested areas at the leaf litter level).
Class III and IV soils predominate in Wełnowiec-Józefowiec. Within the classified area of the district, Class III soils are found in the vicinity of Bytkowska Street near the Bytkowska Park housing estate, and Class IV soils are present near the Agnieszka Colony and .
Climate The climate of Wełnowiec-Józefowiec does not differ significantly from that of Katowice as a whole, but it is modified by local factors. The area has a transitional temperate climate, with oceanic air currents predominating over continental ones. Westerly winds dominate (accounting for about 60% of the total), with easterly and southerly winds playing a lesser role. The average annual temperature for the 1961–2005 period at the station in was 8.1°C, though the urban heat island effect is also noticeable there, which locally modifies the air temperature. The warmest month is July (17.8 °C), and the coldest is January (–2.2 °C). The average annual sunshine duration for the 1966–2005 period was 1,474 hours, and the average annual precipitation for the 1951–2005 period was 713.8 mm.
The microclimate of Wełnowiec-Józefowiec depends on the degree of forest cover, urbanization, and its location relative to river valleys. The entire district lies within the microclimate of developed, higher-elevation valleys, where conditions are generally favorable. With dense buildings and paved areas, the air heats up more quickly during the day and, with lower humidity, loses heat more quickly.
Surface and groundwater Wełnowiec-Józefowiec is located entirely within the Vistula drainage basin, in the basin of two rivers: the Brynica (a small, eastern part of the district bordering Siemianowice Śląskie) and the Rawa. A fourth-order drainage divide runs between these two areas. Neither the Rawa nor the Brynica flows directly through Wełnowiec-Józefowiec. The only body of water in the district is a pond at the intersection of Konduktorska Street and Wojciech Korfanty Avenue, located in the Rawa drainage basin.
According to B. Paczyński’s 1995 regionalization, Wełnowiec-Józefowiec is located within the XII Silesian-Kraków hydrogeological region. Aquifers occur in all stratigraphic series there, but their significance depends on several factors, both natural and human-related. The district lies within the boundaries of Groundwater Body No. 111. One of the Main Groundwater Reservoirs – No. 329 Bytom – is located beneath Wełnowiec-Józefowiec across its entire area. It carries fissure-karst-porous water within a profile of Triassic carbonate rocks. However, there are no exploitable levels within the city limits. The thickness of the aquifer is estimated at 40–250 m, and the average depth of the intakes at 60 m.
Nature and environmental protection
The original, natural vegetation in Wełnowiec-Józefowiec has been developing since the last glaciations, which occurred 12,000–16,000 years ago. Its abundance was influenced by, among other factors, the terrain, the river network, and water resources, and, over the last 200 years, to the greatest extent by human activity. Originally, the higher-elevation areas of the district were covered by beech forests, while the valley of the now-extinct Wełnowiecki Stream was home to hornbeam-oak forests, which were destroyed as a result of the development of mining and metallurgy. Before the anthropogenic impact on the present-day Wełnowiec-Józefowiec, the areas of the were abundant in animals, including large mammals such as bisons, aurochs, mooses, brown bears, wildcats, and wolves, and among birds – capercaillies. With the development of settlement, these animals, considered pests from a human perspective, were exterminated, and with the development of agriculture, animals associated with open areas appeared.
The district has been largely urbanized, resulting in a limited amount of green space, which mainly consists of man-made green areas (such as family allotment gardens, parks, cemeteries, squares, and recreational areas). Among the larger spaces of wooded and undeveloped green space in Wełnowiec-Józefowiec are in Wełnowiec and the vicinity of .