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Medical News Today
3 days ago
- Health
- Medical News Today
What can cause sweat to appear yellow?
Different factors can cause a person's sweat to change color. Typically, if a person's sweat appears yellow, it may be due to a substance in the sweat or the sweat reacting with a substance on the skin. Sweat is a bodily fluid that the sweat glands in the skin excrete. The primary function of sweat is to help regulate body temperature by cooling the skin as it evaporates. This is why people often perspire in hot weather or when exercising. Sweat mostly consists of water, but also contains other substances. In many cases, sweat may be colorless. However, if there is a high level of certain substances in sweat or on the skin, then sweat may appear different colors, such as yellow. skynesher/Getty Images A few different factors can cause a person's sweat to appear yellow or a different color. Typically, this occurs when a pigment is present in sweat and causes discoloration, or something interacts with sweat on the skin and causes it to appear a different color. For example, lipofuscin is a yellow-brown pigment that the body naturally produces. It is the byproduct of the oxidation process of unsaturated fatty acids. When a person has a higher concentration of lipofuscin in their sweat glands, or lipofuscin that is in a higher state of oxidation, it can cause sweat to appear a different color. In other cases, ingesting water-soluble dyes, heavy metals, and certain chemicals or having these substances present on the skin can cause sweat to appear yellow. Possible causes of yellow sweat may include: The apocrine sweat glands are present in areas of the body that possess many hair follicles, such as the armpit or groin. They produce a thicker sweat, which can be responsible for the smell that people associate with sweat. The eccrine glands are present all over the body and secrete a thin, watery sweat that helps to cool the skin. Certain situations can stimulate apocrine chromhidrosis due to higher levels of lipofuscin. This can include skin friction, hot showers, or certain stimuli such as anxiety or sexual arousal. Eccrine chromhidrosis may occur after a person ingests water-soluble dyes, which are common in medications, heavy metals, such as copper, or certain food colorings. For example, some medications may have a coating that contains tartrazine, which is a yellow dye. Other causes of eccrine chromhidrosis may include underlying health conditions. For example, hyperbilirubinemia describes high levels of the yellow pigment bilirubin in the blood. This can result in jaundice and yellow sweat. Pseudochromhidrosis is more common than chromhidrosis. It instead occurs after secreting sweat as it comes into contact with dyes, chemicals, or bacteria that produce pigments. For example, a person may notice yellow sweat around the armpits on pale clothing after using antiperspirants that contain aluminium. Hematohidrosis, or blood sweat, describes a rare condition where a person's sweat contains blood. Although the exact cause is unknown, it likely occurs due to tiny blood vessels rupturing near the sweat glands. However, this is unlikely to produce yellow sweat and instead cause sweat that is red in appearance. Lipofuscin is usually a yellow-brown pigment . Depending on the levels and state of lipofuscin in the apocrine sweat glands, it can cause sweat to appear as different colors. According to the International Hyperhidrosis Society, lipofuscin can cause sweat to be the following colors: yellow green blue brown black Yellow sweat may appear in different areas of the body depending on the underlying cause. For example, apocrine chromhidrosis will present with yellow sweat in areas where the apocrine sweat glands are present. This includes the armpits, areolas, and groin. Eccrine chromhidrosis can affect skin anywhere on the body, but is more likely to appear in areas with more eccrine glands, such as the palms of the hands and soles of the feet. Pseudochromhidrosis can also affect any part of the skin, but is more common on the face, neck, and palms. Treatment for yellow sweat will also depend on the underlying cause. For eccrine chromhidrosis, a person will need to avoid the causative agent or treat the underlying cause of yellow sweat. With pseudochromhidrosis, a person can either avoid the causative dye or chemical or use an antiseptic soap or antibiotics to treat the bacteria causing discoloration of their sweat. Sweat may appear yellow if a person has high levels of certain substances in their sweat, such as lipofuscin or bilirubin. In other cases, sweat may turn yellow if it reacts with certain dyes or chemicals, such as antiperspirants, or if they have bacteria that produce pigments on their skin. Treatment for yellow sweat will depend on the underlying cause. Options may include treatments to reduce sweating, antiseptic soaps, or avoiding the causative agent. Medical News Today has strict sourcing guidelines and relies on peer-reviewed studies, academic research institutions, and medical journals and associations. We only use quality, credible sources to ensure content accuracy and integrity. You can learn more about how we ensure our content is accurate and current by reading our editorial policy.
Business Standard
3 days ago
- Business
- Business Standard
Ishan Dyes and chemicals reports standalone net loss of Rs 1.16 crore in the March 2025 quarter
Sales decline 37.01% to Rs 16.73 crore Net loss of Ishan Dyes and chemicals reported to Rs 1.16 crore in the quarter ended March 2025 as against net profit of Rs 3.68 crore during the previous quarter ended March 2024. Sales declined 37.01% to Rs 16.73 crore in the quarter ended March 2025 as against Rs 26.56 crore during the previous quarter ended March 2024. For the full year,net profit rose 808.33% to Rs 1.09 crore in the year ended March 2025 as against Rs 0.12 crore during the previous year ended March 2024. Sales rose 32.35% to Rs 101.47 crore in the year ended March 2025 as against Rs 76.67 crore during the previous year ended March 2024. Particulars Quarter Ended Year Ended Mar. 2025 Mar. 2024 % Var. Mar. 2025 Mar. 2024 % Var. Sales 16.7326.56 -37 101.4776.67 32 OPM % 1.8516.87 - 6.624.23 - PBDT -0.204.36 PL 4.593.42 34 PBT -0.813.65 PL 2.120.60 253 NP -1.163.68 PL 1.090.12 808
The Guardian
3 days ago
- Health
- The Guardian
Pesticides, antibiotics, animal medicines: the chemical cocktail seeping into our rivers
Rivers carry more than just water through Britain's landscapes. A hidden cocktail of chemicals seeps out of farmland, passes undetected through sewage treatment works, and drains off the roads into the country's rivers. Normally these chemicals flow through unreported, silently restructuring ecosystems as they go, but now, UK scientists are building a map of what lies within – and the damage it may be causing. Trailing down the centre of Britain is one river whose chemical makeup scientists know better than any other. The Foss threads its way through North Yorkshire's forestry plantations, patchworked arable land and small hamlets, before descending into the city of York, passing roads and car parks, gardens replacing farmland. Along the course of its 20-mile (32km) length, the chemical fingerprints of modern life accumulate. 'The Foss is the river that we understand the most,' says Prof Alistair Boxall from the University of York, who has been leading the research across Yorkshire's rivers. He leads the Ecomix research project which studies 10 rivers across the region, developing ways to examine these chemicals in greater depth than ever before. 'This is the chemical pulse of Yorkshire water,' he says, and the findings from the water here are likely to be replicated across the country. 'People are surprised. They typically think of plastics and sewage. People don't make the connection between the chemicals we use and the environment.' The story these rivers are telling is worrying, says Boxall. Among the thousands of chemicals detected was the tyre additive 6PPD-quinone, which has been linked with mass salmon die-offs in the US. In urban sites across Sheffield, Leeds and Wakefield it was found in about three-quarters of samples. Fungicides and herbicides were among the most detected chemicals. About 500 pesticides – which includes insecticides, fungicides and herbicides – are approved for use in Europe, and 600 are greenlit for veterinary use on livestock and pets. Research has shown antihistamine levels in the water rise when hay fever is bad – one of many pharmaceuticals that end up in rivers after being flushed down the toilet. Monitoring the Foss started in Stillington Mill, in the back garden of a former headteacher. He is one of the volunteers who made this research possible – either by taking samples or allowing monitoring to be done on their land. This spot is about 10 miles from the source of the Foss. Fields of wheat and oilseed rape back on to the water from the other side of the river. Three thousand chemicals were detected here (of which 40% are likely to occur naturally). In the targeted analysis scientists identified 40 chemicals including livestock medicines, pharmaceuticals, UV filters, fungicides and herbicides. In total they were looking for 52 chemicals (excluding metals) and found 44 across the three sampling sites on the Foss. They chose to focus on these chemicals because they are known for toxicity and potential harm to aquatic organisms. By the time it reaches York city centre – about another 10 miles away – an additional 1,000 chemicals have been added to the river, including household chemicals such as antibiotics and cosmetics as the river passes from agricultural areas into villages and towns. On the outskirts of York at New Earswick, Boxall documented the second highest level of paracetamol in the water ever measured in Europe, after a sewage system failure. It was 1,000 times the normal level. In Boxall's lab, a set of creatures he calls 'little beasties' live in fish tanks – a tiny menagerie including duck mussels, swan mussels, ramshorn snails, bloodworms and leeches collected in the ponds around campus. These are species commonly found in UK rivers. Twelve cultures of cyanobacteria – blue-green algae – are siphoned around, each a slightly different shade of green. 'Algae are the base of the food chain,' he says. Here, the invertebrates and algae are exposed to different chemicals and scientists are monitoring the effects. This is the other focus of the Ecomix research: working to understand the effects chemicals are having on the ecology of British rivers. One in 10 freshwater and wetland species in England is threatened with extinction. Boxall believes chemical pollution could be as bad for river ecosystems as sewage spills, which regularly make headlines. Researchers have found that chemical pollution makes a 'significant' contribution to the decline of fish and other aquatic organisms, one that is often missed by regulators. More than 350,000 chemicals are registered for production and use, with about 2,000 new ones added each year. They are probably having a range of unknown negative effects on the ecology of our rivers – changing organisms' behaviour and physiology. Chemicals have been shown to have a diverse impact on fish, including their reproduction, social interactions and feeding behaviour. Studies suggest ibuprofen can affect fish hatching, the anti-inflammatory diclofenac affects fish livers, and antidepressants have been linked to a range of behavioural changes. Salmon exposed to anti-anxiety medication have been shown to take more risks, and some flea treatments like imidacloprid are toxic to invertebrates such as mayflies and dragonflies. 'You've effectively got a situation where some chemicals are hitting the base of the food web, others are hitting the invertebrates, and you've got other chemicals hitting the fish,' says Boxall. The Ecomix study is far more comprehensive than chemical modelling by the Environment Agency, which focuses mainly on 'grab samples', or monthly monitoring at best. Boxall's study looked at 19 sites across 10 rivers over a year of continuous monitoring, during which 20,000 samples were collected. 'The Environment Agency doesn't have the resources to tackle this issue well enough,' said Rob Collins from the Rivers Trust, who was not involved in the research. He added that controlling these chemicals at source was key: 'It is a societal challenge to tackle this problem – we are all involved. We also need to see much stronger government regulation with more hazardous chemicals. 'Once these chemicals get into the environment it's very hard to do anything about them. For example, Pfas – known as 'forever chemicals' – can persist in the environment for more than 1,000 years.' Richard Hunt was one of a dozen citizen scientists who has made this research possible. The results were 'sobering', said Hunt, who took a weekly sample in the centre of York. His was among the sites with the highest level of chemicals – as expected in an urban area. UV filters, fire retardants, de-wormers, DEET and cocaine were among the things swirling around in the water. 'I was gobsmacked by the number of chemicals,' says Hunt. 'If people were instructed on how they could help, they would.' The holy grail for addressing chemical pollution is a constant monitoring system, reporting in real time, says Boxall. Having live updates would alert authorities to possible pollution issues so they could respond faster, although Environment Agency staff have been told to ignore low-impact pollution events because the body does not have the resources to investigate. 'Chemicals are important for society,' says Boxall. 'We benefit from them, but we need to reduce their environmental harm.' Hunt points out that the wealth of his city came from its two rivers – the Ouse and its tributary, the Foss. Understanding what chemicals are flowing through them and working out what we can do to clean it up would be to repay adebt of gratitude. 'York wouldn't be nearly as healthy and successful if not for the rivers. We need to have more respect for them.' Find more age of extinction coverage here, and follow the biodiversity reporters Phoebe Weston and Patrick Greenfield in the Guardian app for more nature coverage
Yahoo
6 days ago
- Business
- Yahoo
2025 Chemicals Top 5 Emerging Markets Industry Guide: 2020-2029 Top Players, Key Financial Metrics and Analysis, & Competitive Pressures
Dublin, May 26, 2025 (GLOBE NEWSWIRE) -- The "Chemicals Top 5 Emerging Markets Industry Guide 2020-2029" report has been added to Emerging 5 Chemicals industry profile provides top-line qualitative and quantitative summary information including: market size (value and volume, and forecast to 2029). The profile also contains descriptions of the leading players including key financial metrics and analysis of competitive pressures within the Highlights These countries contributed $2.93 trillion to the global chemicals industry in 2024, with a compound annual growth rate (CAGR) of 11.1% between 2007 and 2011. The top 5 emerging countries are expected to reach a value of $4.11 trillion in 2029, with a CAGR of 7% over the 2024-29 period. Within the chemicals industry, China is the leading country among the top 5 emerging nations, with market revenues of $2.59 trillion in 2024. This was followed by India and Brazil with a value of $152.2 and $129.9 billion, respectively. China is expected to lead the chemicals industry in the top five emerging nations, with a value of $3.71 trillion in 2029, followed by India and Brazil with expected values of $194.1 and $145.5 billion, respectively. Scope Save time carrying out entry-level research by identifying the size, growth, major segments, and leading players in the emerging five chemicals market Use the Five Forces analysis to determine the competitive intensity and therefore attractiveness of the emerging five chemicals market Leading company profiles reveal details of key chemicals market players' emerging five operations and financial performance Add weight to presentations and pitches by understanding the future growth prospects of the emerging five chemicals market with five year forecasts by both value and volume Compares data from Brazil, China, India, Mexico and South Africa, alongside individual chapters on each country Reasons to Buy What was the size of the emerging five chemicals market by value in 2024? What will be the size of the emerging five chemicals market in 2029? What factors are affecting the strength of competition in the emerging five chemicals market? How has the market performed over the last five years? What are the main segments that make up the emerging five chemicals market? Key Topics Covered: 1 Introduction1.1. What is this report about?1.2. Who is the target reader?1.3. How to use this report1.4. Definitions2 Top 5 Emerging Countries Chemicals2.1. Industry Outlook3 Chemicals in South Africa3.1. Market Overview3.2. Market Data3.3. Market Segmentation3.4. Market outlook3.5. Five forces analysis4 Macroeconomic Indicators4.1. Country data5 Chemicals in Brazil5.1. Market Overview5.2. Market Data5.3. Market Segmentation5.4. Market outlook5.5. Five forces analysis6 Macroeconomic Indicators6.1. Country data7 Chemicals in China7.1. Market Overview7.2. Market Data7.3. Market Segmentation7.4. Market outlook7.5. Five forces analysis8 Macroeconomic Indicators8.1. Country data9 Chemicals in India9.1. Market Overview9.2. Market Data9.3. Market Segmentation9.4. Market outlook9.5. Five forces analysis10 Macroeconomic Indicators10.1. Country data11 Chemicals in Mexico11.1. Market Overview11.2. Market Data11.3. Market Segmentation11.4. Market outlook11.5. Five forces analysis12 Macroeconomic Indicators12.1. Country data13 Company Profiles13.1. LG Chem Ltd13.2. BASF SE13.3. China Petrochemical Corp13.4. Dow Inc13.5. LyondellBasell Industries NV13.6. Mitsui Chemicals Inc13.7. China Petroleum & Chemical Corp13.8. Reliance Industries Ltd13.9. Shell Chemicals Ltd13.10. ExxonMobil Chemical Co13.11. TotalEnergies SE13.12. Arkema SA13.13. Solvay SA13.14. Merck KGaA13.15. Lanxess AG13.16. Evonik Industries AG13.17. Arcadium Lithium PLC13.18. Alpha HPA Ltd13.19. Orica Ltd13.20. Dyno Nobel Ltd13.21. Braskem SA13.22. Nutrien Ltd13.23. Methanex Corp13.24. Nova Chemicals Corp13.25. Wanhua Chemical Group Co Ltd13.26. China National Petroleum Corp13.27. PetroChina Co Ltd13.28. Tata Chemicals Ltd13.29. Gujarat Fluorochemicals Ltd13.30. SRF Ltd13.31. Pidilite Industries Ltd13.32. PT Pupuk Indonesia Holding Co13.33. PT Lautan Luas Tbk13.34. PT Chandra Asri Pacific Tbk13.35. Polynt SpA13.36. Versalis SpA13.37. Mitsubishi Chemical Group Corp13.38. Sumitomo Chemical Co Ltd13.39. Asahi Kasei Corp13.40. Alpek SAB de CV13.41. Nouryon Chemicals Holding BV13.42. DuPont de Nemours Inc13.43. Acron13.44. Sibur Holding13.45. Phosagro13.46. Schelkovo Agrohim JSC13.47. Yara International ASA13.48. Omnia Holdings Ltd13.49. Sasol Ltd13.50. AECI Ltd13.51. SK Innovation Co Ltd13.52. Hanwha Solutions Corp13.53. Lotte Chemical Corp13.54. INEOS Ltd13.55. Sasa Polyester Sanayi AS13.56. Croda International Plc13.57. Johnson Matthey Plc13.58. Victrex Plc For more information about this report visit About is the world's leading source for international market research reports and market data. We provide you with the latest data on international and regional markets, key industries, the top companies, new products and the latest trends. CONTACT: CONTACT: Laura Wood,Senior Press Manager press@ For E.S.T Office Hours Call 1-917-300-0470 For U.S./ CAN Toll Free Call 1-800-526-8630 For GMT Office Hours Call +353-1-416-8900Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
Yahoo
6 days ago
- Business
- Yahoo
2025 Chemicals Global Industry Guide: 2020-2029 Top Players, Key Financial Metrics and Analysis, & Competitive Pressures
Explore the comprehensive Global Chemicals Industry Profile offering insights into market size and forecasts up to 2029. It covers key segments like commodity and specialty chemicals, examines leading players with financial metrics, and analyzes competitive pressures. Discover trends and economic indicators influencing this $5.44 trillion market. See why Asia-Pacific dominates and the significance of segments like agricultural chemicals, with detailed future growth forecasts. Dublin, May 26, 2025 (GLOBE NEWSWIRE) -- The "Chemicals Global Industry Guide 2020-2029" report has been added to Chemicals industry profile provides top-line qualitative and quantitative summary information including: market size (value and volume, and forecast to 2029). The profile also contains descriptions of the leading players including key financial metrics and analysis of competitive pressures within the Highlights Chemicals market is segmented into commodity chemicals, specialty chemicals, agriculture chemicals, and others. Market values represent country's consumption of chemical products at the producer's selling price (PSP). Commodity chemicals are basic chemical products used in large quantities across various industries. These chemicals are essential in the production of items such as man-made fibers, basic chemicals, rubber tires and tubes, plastic products, etc. Specialty chemicals are distinctive, high-value substances designed for specific applications. These chemicals play a critical role in industries like personal care and cosmetics, pharmaceuticals, food and beverages, adhesives and sealants, water treatment, and construction. Agricultural chemicals are vital for enhancing crop production, protecting plants from pests and diseases, and improving soil fertility. They are used in fertilizers, pesticides, plant growth regulators, soil conditioners, antimicrobial agents, and other related applications. The scope of others segment includes chemicals used for the manufacture of photographic plates, films, sensitized paper and other sensitized unexposed material. It also includes substances used for pickling metal, making propellant powders, and creating powders and pastes for soldering, brazing, or welding. All market data and forecasts are based on nominal prices, and all currency conversions used in the creation of this report have been calculated using yearly annual average exchange rates. The USD values may show a declining trend for a few countries, such as Argentina, Turkey, Nigeria, Egypt, and Russia. This is primarily because of the impact of exchange rates considered. The global chemicals market recorded revenues of $5.44 trillion in 2024, representing a compound annual growth rate (CAGR) of 5.9% between 2019 and 2024. The commodity chemicals segment accounted for the market's largest proportion in 2024, with total revenues of $2.94 trillion, equivalent to 54.2% of the market's overall value. According to the publisher, Asia-Pacific dominated the global chemicals market in 2024, commanding the largest share of 63.1%. Scope Save time carrying out entry-level research by identifying the size, growth, major segments, and leading players in the global chemicals market Use the Five Forces analysis to determine the competitive intensity and therefore attractiveness of the global chemicals market Leading company profiles reveal details of key chemicals market players' global operations and financial performance Add weight to presentations and pitches by understanding the future growth prospects of the global chemicals market with five year forecasts by both value and volume Macroeconomic indicators provide insight into general trends within the global economy Reasons to Buy What was the size of the global chemicals market by value in 2024? What will be the size of the global chemicals market in 2029? What factors are affecting the strength of competition in the global chemicals market? How has the market performed over the last five years? What are the main segments that make up the global chemicals market? Key Topics Covered: 1 Executive Summary1.1. Market value1.2. Market value forecast1.3. Category segmentation1.4. Geography segmentation1.5. Competitive landscape2 Introduction2.1. What is this report about?2.2. Who is the target reader?2.3. How to use this report2.4. Definitions3 Global Chemicals3.1. Market Overview3.2. Market Data3.3. Market Segmentation3.4. Market outlook3.5. Five forces analysis4 Macroeconomic Indicators4.1. Country dataCompetitive Landscape Acron AECI Ltd Alpek SAB de CV Alpha HPA Ltd Arcadium Lithium PLC Arkema SA Asahi Kasei Corp BASF SE Braskem SA China National Petroleum Corp China Petrochemical Corp China Petroleum & Chemical Corp Croda International Plc Dow Inc DuPont de Nemours Inc Dyno Nobel Ltd Evonik Industries AG ExxonMobil Chemical Co Gujarat Fluorochemicals Ltd Hanwha Solutions Corp INEOS Ltd Johnson Matthey Plc Lanxess AG LG Chem Ltd Lotte Chemical Corp LyondellBasell Industries NV Merck KGaA Methanex Corp Mitsubishi Chemical Group Corp Mitsui Chemicals Inc Nouryon Chemicals Holding BV Nova Chemicals Corp Nutrien Ltd Omnia Holdings Ltd Orica Ltd PetroChina Co Ltd Phosagro Pidilite Industries Ltd Polynt SpA PT Chandra Asri Pacific Tbk PT Lautan Luas Tbk PT Pupuk Indonesia Holding Co Reliance Industries Ltd Sasa Polyester Sanayi AS Sasol Ltd Schelkovo Agrohim JSC Shell Chemicals Ltd Sibur Holding SK Innovation Co Ltd Solvay SA SRF Ltd Sumitomo Chemical Co Ltd Tata Chemicals Ltd TotalEnergies SE Versalis SpA Victrex Plc Wanhua Chemical Group Co Ltd Yara International ASA For more information about this report visit About is the world's leading source for international market research reports and market data. We provide you with the latest data on international and regional markets, key industries, the top companies, new products and the latest trends. CONTACT: CONTACT: Laura Wood,Senior Press Manager press@ For E.S.T Office Hours Call 1-917-300-0470 For U.S./ CAN Toll Free Call 1-800-526-8630 For GMT Office Hours Call +353-1-416-8900Error in retrieving data Sign in to access your portfolio Error in retrieving data Error in retrieving data Error in retrieving data Error in retrieving data
