 Old plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried Abu Nakhla jail ponds (sewage lagoons), with caked mud at the bottom. Qatar, April 18, 2015
 Texture of dried caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried caked mud on the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried caked mud covering the bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Drying Abu Nakhla jail ponds (sewage lagoons), April 18, 2015
 Widgeon Grass (Ruppia maritima) with flowers in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Grass Sporobolus spicatus growing on dried bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Blue dome and traces of a chandelier in a plywood mosque near Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dying aquatic plant of brittle naiad (Najas marina) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried aquatic plants of brittle naiad (Najas marina) in caked mud of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Fruits and a flower of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Cluster of fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dense stand of aquatic plant Widgeon Grass (Ruppia maritima) in Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Dried aquatic plants of brittle naiad (Najas marina) on muddy bottom of Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Membranous sheath with a flower(?) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of membranous sheath of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of pea shaped fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of pea shaped fruits (drupelets) of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Close up of membranous sheath with coiled stalk (peduncle) bearing flowers and fruits of aquatic plant Widgeon Grass (Ruppia maritima) taken from Abu Nakhla jail ponds (sewage lagoons). Qatar, April 18, 2015
 Old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Remains of a car near Abu Nakhla lagoons. South from Doha, Qatar, May 27, 2016
 Clump of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Roots of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) with roots taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Narrow leaves of beaked tasselweed (widgeongrass, Ruppia maritima) taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) submerged in Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Beaked tasselweed (widgeongrass, Ruppia maritima) with roots extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Spiny leaves of brittle naiad aquatic plant (Najas marina) from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) extracted from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Mihrab (semicircular prayer niche) in qibla wall inside old plywood mosque near Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) on dark background taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Toothed leaves of brittle naiad aquatic plant (Najas marina) with serrate edges taken from Abu Nakhla wastewater treatment ponds. Doha, Qatar, February 27, 2015
 Birdwatching with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Watching birds with QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Evans bluetail damselfly (Ischnura evansii) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on a sewage pond near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Group of birdwatchers from QNHG (Qatar Natural History Group) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Leaves of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on a sewage pond near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Shoots of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on a sewage pond near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Bright mature male broad scarlet dragonfly (Crocothemis erythraea) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Spreading plant of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on a sewage pond near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Group of birdwatchers from QNHG (Qatar Natural History Group) on a service road near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Broad scarlet dragonfly (Crocothemis erythraea) in obelisk position near a service road of Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Female broad scarlet dragonfly (Crocothemis erythraea) holding its abdomen up (obelisk position) near Abu Nakhla wastewater treatment ponds. Doha, Qatar, March 29, 2014
 Southern cattail (Typha domingensis) in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Spike of Southern cattail (Typha domingensis) taken from area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Masses of Southern cattail (Typha domingensis) in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Flowering spikes of Southern cattail (Typha domingensis) in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Solitary plant of European seaheath (Frankenia pulverulenta) in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Southern cattail (Typha domingensis) with flowering spikes in area of sewage ponds near Irkhaya (Irkaya) Farms. Qatar, June 3, 2016
 Water morning glory (water spinach, water convolvulus, Ipomoea aquatica) near a water leakage site near sand processing plant near Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 White flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) near a water leakage site near sand processing plant near Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Habitat of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Housing Community near a hospital. Al Khor, Qatar, November 14, 2015
 Blooming water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 White flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 Two white flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 Three white flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 Masses of white flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 Large white flowers of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 Close up of a white flower of water morning glory (water spinach, water convolvulus, Ipomoea aquatica) on northern corner of Umm Enaig Housing Community near a hospital (Jeri Al Ramli). Al Khor, Qatar, November 14, 2015
 A damn of a polluted water reservoir. Yeroham, the Middle East, March 8, 2001
 Polluted water reservoir closed for visitors. Yeroham, the Middle East, March 8, 2001
 A trail starting from a damn of a polluted water reservoir. Yeroham, the Middle East, March 8, 2001
 Sewage outlet (ground water from construction sites) on Corniche (seafront promenade). Doha, Qatar, February 12, 2010
 Ain Numan water well in Al Nuaman (Naim tribe, Nuaimiya). Northern Qatar, April 17, 2015
 Spring flowers on a trail starting from a damn of a polluted water reservoir. Yeroham, the Middle East, March 8, 2001
 Umbellifer plants Tansy dogshade (Limnosciadium pinnatum, Apiaceae) in standing water behind sewage treatment plant in Lick Creek Park. College Station, Texas, April 27, 2023
 Inflorescence of Malabar sprangletop (brown beetle-grass, Leptochloa fusca) taken from area of lagoons north from entrance of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Close up of inflorescence of Malabar sprangletop (brown beetle-grass, Leptochloa fusca) taken from area of lagoons north from entrance of Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, December 18, 2015
 Water sprinkles on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
 Seedling of Salsola vermiculata (local name hamd) taken from area of ponds near the entrance of Irkhaya (Irkaya) Farms. Qatar, November 13, 2015
 Group of date palms (Phoenix dactylifera, local name nakheel) on a beach in the area of Al Hamala (Al Hamlah) Water Well near Umm Bab in south-western Qatar, April 25, 2015
 Grove of date palms (Phoenix dactylifera, local name nakheel) on a beach in the area of Al Hamala (Al Hamlah) Water Well near Umm Bab in south-western Qatar, April 25, 2015
 Trunks of date palms (Phoenix dactylifera, local name nakheel) on a beach in the area of Al Hamala (Al Hamlah) Water Well near Umm Bab in south-western Qatar, April 25, 2015
 Sewage line right of way near a water treatment plant in fog in Lick Creek Park. College Station, Texas, November 5, 2007
 Sewage line right of way near water treatment plant in fog in Lick Creek Park. College Station, Texas, August 16, 2008
 Forest on Sewage line right of way near water treatment plant in fog in Lick Creek Park. College Station, Texas, August 16, 2008
 Sewage line right of way near water treatment plant in mist in Lick Creek Park. College Station, Texas, August 16, 2008
 Sewage line right of way near a water treatment plant in mist in Lick Creek Park. College Station, Texas, November 5, 2007
 Sewage line right of way with a water treatment plant in background in Lick Creek Park. College Station, Texas, October 17, 2007
 Trees on sewage line right of way near water treatment plant in fog in Lick Creek Park. College Station, Texas, August 16, 2008
 Sewage line right of way near a water treatment plant in mist in Lick Creek Park. College Station, Texas, October 17, 2007
 Sewage line right of way near water treatment plant at morning in mist, in Lick Creek Park. College Station, Texas, September 16, 2007
 Sewage line right of way in direction of water treatment plant in Lick Creek Park at rain. College Station, Texas, November 18, 2007
 An old car on Red Trail in Six Mile Run Reservoir, near Cross Brook. Somerset, New Jersey, April 29, 2007
 Yellow Trail in Six Mile Run Reservoir, after flooding. Somerset, New Jersey, April 29, 2007
 Uwaynat Bin Husayn Water Well near Simaisma. Qatar, February 28, 2015
 Uwaynat Bin Husayn Water Well near Simaisma. Qatar, March 28, 2015
 Water well in Uwaynat Bin Husayn near Simaisma. Qatar, February 28, 2015
 Seedlings of redseed plantain(?) on gravel soil over a sewage pipeline west from a water treatment plant in Lick Creek Park. College Station, Texas, February 5, 2024
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