Gan, Y. et al. Multiple factors impact the contents of heavy metals in vegetables in high natural background area of China. Chemosphere 184, 1388–1395 (2017).
Mekonnen, M. & Hoekstra, Y. A. Four billion people facing severe water scarcity. Am. Assoc. Adv. Sci. 2, 1–7 (2016).
Naimi-Ait-Aoudia, M. & Berezowska-Azzag, E. Algiers carrying capacity with respect to per capita domestic water use. Sustain. Cities Soc. 13, 1–11 (2014).
Njuguna, S. M. et al. Health risk assessment by consumption of vegetables irrigated with reclaimed waste water: a case study in Thika (Kenya). J. Environ. Manage. 231, 576–581 (2019).
USEPA. Guidelines for water reuse. U.S. Agency Int. Dev. 643 (2012). EPA16251R-921004
Khanum, K. et al. Heavy metal toxicity and human health risk surveillances of wastewater irrigated vegetables in Lahore District, Pakistan. Carpathian J. Earth Environ. Sci. 12, 403–412 (2017).
Raja, S. et al. Socio-economic background of wastewater irrigation and bioaccumulation of heavy metals in crops and vegetables. Agric. Water Manag. 158, 26–34 (2015).
Murtaza, G. et al. Disposal and use of sewage on agricultural lands in Pakistan: a review. Pedosph. An Int. J. 20, 23–34 (2010).
Hanjra, M. A. & Qureshi, M. E. Global water crisis and future food security in an era of climate change. Food Policy 35, 365–377 (2010).
Mamat, Z., Yimit, H., Ji, R. Z. A. & Eziz, M. Source identification and hazardous risk delineation of heavy metal contamination in Yanqi basin, northwest China. Sci. Total Environ. 493, 1098–1111 (2014).
Uyar, G., Ören, M., Yildirim, Y. & Ince, M. Mosses as indicators of atmospheric heavy metal deposition around a coal-fired power plant in Turkey. Fresenius Environ. Bull. 16, 182–192 (2007).
Haq, Q. et al. Heavy metals and human health: mechanistic insight into toxicity and counter defense system of antioxidants. Int. J. Mol. Sci. 16, 29592–29630 (2015).
Wang, M. et al. Heavy metal contamination and ecological risk assessment of swine manure irrigated vegetable soils in Jiangxi Province, China. Bull. Environ. Contam. Toxicol. 100, 634–640 (2018).
Balkhair, K. S. & Ashraf, M. A. Field accumulation risks of heavy metals in soil and vegetable crop irrigated with sewage water in western region of Saudi Arabia. Saudi J. Biol. Sci. 23, S32–S44 (2016).
Chaoua, S., Boussaa, S., El Gharmali, A. & Boumezzough, A. Impact of irrigation with wastewater on accumulation of heavy metals in soil and crops in the region of Marrakech in Morocco. J. Saudi Soc. Agric. Sci. https://doi.org/10.1016/j.jssas.2018.02.003 (2018).
Liang, Y. et al. Heavy metal contamination and health risk assessment in the vicinity of a tailing pond in Guangdong, China. Int. J. Environ. Res. Public Health 14, 1–10 (2017).
Singh, U. K. & Kumar, B. Pathways of heavy metals contamination and associated human health risk in Ajay River basin, India. Chemosphere 174, 183–199 (2017).
Liu, X., Liang, C., Liu, X., Zhao, F. & Han, C. Ecotoxicology and environmental safety occurrence and human health risk assessment of pharmaceuticals and personal care products in real agricultural systems with long-term reclaimed wastewater irrigation in Beijing, China. Ecotoxicol. Environ. Saf. 190, 110022 (2020).
Cai, L. et al. Science of the Total Environment Heavy metal contamination and health risk assessment for children near a large Cu-smelter in central China. Sci. Total Environ. 650, 725–733 (2019).
Mehmood, A. et al. Spatial distribution of heavy metals in crops in a wastewater irrigated zone and health risk assessment. Environ. Res. 168, 382–388 (2019).
Liu, Y. et al. Health risk assessment of heavy metals ( Zn, Cu, Cd, Pb, As and Cr ) in wheat grain receiving repeated Zn fertilizers. Environ. Pollut. 257, 113581 (2020).
Jahany, M. & Rezapour, S. Assessment of the quality indices of soils irrigated with treated wastewater in a calcareous semi-arid environment. Ecol. Indic. 109, 105800 (2020).
Chidozie, P., Brizi, J., Theophilus, I., Charles, C. & Jarvis, P. Chemosphere Estimation of some trace metal pollutants in River Atuwara southwestern Nigeria and spatio-temporal human health risks assessment. Chemosphere 239, 124770 (2020).
Lian, M. et al. Profiles and potential health risks of heavy metals in soil and crops from the watershed of Xi River in Northeast China. Ecotoxicol. Environ. Saf. 169, 442–448 (2019).
Hattab, S., Bougattass, I., Hassine, R. & Dridi-Al-Mohandes, B. Metals and micronutrients in some edible crops and their cultivation soils in eastern-central region of Tunisia: a comparison between organic and conventional farming. Food Chem. 270, 293–298 (2019).
Yousaf, B. et al. The importance of evaluating metal exposure and predicting human health risks in urban-periurban environments influenced by emerging industry. Chemosphere 150, 79–89 (2016).
Khan, M. U., Malik, R. N. & Muhammad, S. Human health risk from Heavy metal via food crops consumption with wastewater irrigation practices in Pakistan. Chemosphere 93, 2230–2238 (2013).
Mahmood, A. & Malik, R. N. Human health risk assessment of heavy metals via consumption of contaminated vegetables collected from different irrigation sources in Lahore, Pakstisan. Arab. J. Chem. 7, 91–99 (2014).
Wuana, R. A. & Okieimen, F. E. Heavy metals in contaminated soils: a review of sources, chemistry, risks, and best available strategies for remediation. Heavy Met. Contam. Water Soil Anal. Assess. Remediat. Strateg. 201, 1–50 (2014).
Chen, L. et al. Heavy metals in food crops, soil, and water in the Lihe River Watershed of the Taihu Region and their potential health risks when ingested. Sci. Total Environ. 615, 141–149 (2018).
Ali, H. Q., Farooq, A. & Ahmed, M. Monitoring the wastewater treatment efficiency of oxidation ponds at Chokera, Faisalabad. Eng. Sci. 36, 987–994 (2017).
Hydrometer, F., Model, F. & Balance, P. Particle size analysis (hydrometer method), 5–7 (2004).
APHA. Standard Methods for Examination of Water and Wastewater. (2017).
USEPA. Acid digestion of waters for total recoverable or dissolved metals for analysis by flaa or icp spectroscopy. 1, 1–5 (1992).
Sawut, R. et al. Pollution characteristics and health risk assessment of heavy metals in the vegetable bases of northwest China. Sci. Total Environ. 642, 864–878 (2018).
Siti Ripin, S. H., Kamal, M. L. & Hashim, N. S. M. Analysis and pollution assessment of heavy metal in soil, Perlis. Malaysian J. Anal. Sci. 18, 155–161 (2014).
Rehman, A., Chandio, A. A., Hussain, I. & Jingdong, L. Fertilizer consumption, water availability and credit distribution: major factors affecting agricultural productivity in Pakistan. J. Saudi Soc. Agric. Sci. https://doi.org/10.1016/j.jssas.2017.08.002 (2018).
Islam, S., Ahmed, K. & Raknuzzaman, M. Heavy metals in the industrial sludge and their ecological risk: a case study for a developing country. J. Geochem. Explor. 172, 41–49 (2017).
Solomon, E. R., Giesy, J. O. H. N. P., Point, T. H. W. L. A. P., Giddings, J. E. M. G. & Richards, R. P. E. R. Ecological risk assessment of atrazine in North American surface waters. Environ. Toxicol. Chem. 32, 10–11 (2013).
Rehman, I. et al. Enrichment, spatial distribution of potential ecological and human health risk assessment via toxic metals in soil and surface water ingestion in the vicinity of Sewakht mines, district Chitral. Northern Pakistan. Ecotoxicol. Environ. Saf. 154, 127–136 (2018).
Kolawole, T. O., Olatunji, S., Jimoh, M. T. & Fajemila, O. T. Heavy metal contamination and ecological risk assessment in soils and sediments of an industrial area in Southwestern Nigeria. J. Health Pollut. 8, 180906 (2018).
Soliman, N. F., Nasr, S. M. & Okbah, M. A. Environmental health potential ecological risk of heavy metals in sediments from the Mediterranean coast, Egypt. J. Environ. Health. Sci. Eng. https://doi.org/10.1186/s40201-015-0223-x (2015).
Huang, X. et al. Heavy-metal pollution and potential ecological risk assessment of sediments from Baihua Lake, Guizhou, P.R. China. Int. J. Environ. Health Res. 3123, 1–10 (2009).
Zhang, L. & Liu, J. In situ relationships between spatial–temporal variations in potential ecological risk indexes for metals and the short-term effects on periphyton in a macrophyte-dominated lake: a comparison of structural and functional metrics. Ecotoxicology 23, 553–566. https://doi.org/10.1007/s10646-014-1175-0 (2014).
Abbasi, A., Iqbal, J., Ajab, M. & Shah, M. H. Health risk assessment and multivariate apportionment of trace metals in wild leafy vegetables from Lesser Himalayas, Pakistan. Ecotoxicol. Environ. Saf. 92, 237–244 (2013).
USEPA. A Framework for Assessing Health Risks of Environmental Exposures to Children. (2006).
Zabin, S. A., Foaad, M. A. & Al-ghamdi, A. Y. Assessment of Heavy Metals and Fluoride in Some Water Wells in the Al- Baha Region, Saudi Arabia. Human and Ecological Risk Assessment 14, 1306–13177039 (2008).
USEPA. Exposure Factors Handbook : 2011 Edition. (2011).
USEPA. Regional Screening Levels (RSLs): Generic Tables. 1–12 (2019).
FAO. The State of Food and Agriculture. (1992).
FAO. FAO Codex Alimentarius Commission. 2–7 (2001).
European Union Commission. 20.12.2006. 2006, 5–24 (2006).
Yamin, M., Awan, A. N. & Sultan, M. Impact of sewage and industrial effluents on water quality in Faisalabad. Adv. Environ. Biol. 9, 53–59 (2015).
Sharma, S., Nagpal, A. K. & Kaur, I. Heavy metal contamination in soil, food crops and associated health risks for residents of Ropar wetland, Punjab, India and its environs. Food Chem. 255, 15–22 (2018).
Singh, A., Sharma, R. K., Agrawal, M. & Marshall, F. M. Risk assessment of heavy metal toxicity through contaminated vegetables from waste water irrigated area of Varanasi, India. Trop. Ecol. 51, 375–387 (2010).
Radwan, M. A. & Salama, A. K. Market basket survey for some heavy metals in Egyptian fruits and vegetables. Food Chem. Toxicol. 44, 1273–1278 (2006).
Elgallal, M., Fletcher, L. & Evans, B. Assessment of potential risks associated with chemicals in wastewater used for irrigation in arid and semiarid zones: a review. Agric. Water Manag. 177, 419–431 (2016).
Bashir, I. et al. Effects of irrigation with waste water from different industries on vegetables grown in vicinity of Faisalabad, Pakistan. Chemosphere 4, 144–148 (2013).
Libutti, A. et al. Agro-industrial wastewater reuse for irrigation of a vegetable crop succession under Mediterranean conditions. Agric. Water Manag. 196, 1–14 (2018).
Cheshmazar, E., Arfaeinia, H., Karimyan, K., Sharafi, H. & Hashemi, S. E. Dataset for effect comparison of irrigation by wastewater and ground water on amount of heavy metals in soil and vegetables: Accumulation, transfer factor and health risk assessment. Data Br. 18, 1702–1710 (2018).
Zahra, A., Zaffar, M. & Naseem, R. Enrichment and geo-accumulation of heavy metals and risk assessment of sediments of the Kurang Nallah: Feeding tributary of the Rawal Lake. Chemosphere 471, 925–933 (2014).
Topalidis, V., Harris, A., Hardaway, C. J., Benipal, G. & Douvris, C. Investigation of selected metals in soil samples exposed to agricultural and automobile activities in Macedonia, Greece using inductively coupled plasma-optical emission spectrometry. Microchem. J. 130, 213–220 (2017).
Zhang, C., Li, Z. & Yang, W. Assessment of metals pollution on agricultural soil surrounding a lead: zinc mining area in the Karst Region of Guangxi, China. Chemosphere https://doi.org/10.1007/s00128-013-0987-6 (2013).
Huang, S. S. et al. Survey of heavy metal pollution and assessment of agricultural soil in Yangzhong district, Jiangsu Province, China. Chemosphere 67, 2148–2155 (2007).
Liu, X. et al. Environment human health risk assessment of heavy metals in soil–vegetable system: a multi-medium analysis. Sci. Total Environ. 463–464, 530–540 (2013).
Luo, C. et al. Heavy metal contamination in soils and vegetables near an e-waste processing site, south China. J. Hazard. Mater. 186, 481–490 (2011).
Turkdogan, M., Kilicel, F., Kara, K. & Tuncer, I. Heavy metals in soil, vegetables and fruits in the endemic upper gastrointestinal cancer region of Turkey. Environ. Toxicol. Pharmacol. 13, 175–179 (2002).
Xiao, R., Wang, S., Li, R., Wang, J. J. & Zhang, Z. Ecotoxicology and Environmental safety soil heavy metal contamination and health risks associated with artisanal gold mining in Tongguan, Shaanxi, China. Ecotoxicol. Environ. Saf. 141, 17–24 (2017).
Peña-fernández, A., González-muñoz, M. J. & Lobo-bedmar, M. C. Establishing the importance of human health risk assessment for metals and metalloids in urban environments. Environ. Int. 72, 176–185 (2014).
Madrid, E. et al. Variability in concentrations of potentially toxic elements in urban parks from six European cities. J. Eur. Monit. https://doi.org/10.1039/b607980f (2006).