ABSTRACT
This study aimed to classify the spatiotemporal analysis of rainwater quality before and during the Movement Control Order (MCO) implementation due to the COVID-19 pandemic. Chemometric analysis was carried out on rainwater samples collected from 24-gauge stations throughout Malaysia to determine the samples' chemical content, pH, and conductivity. Other than that, hierarchical agglomerative cluster analysis (HACA) and discriminant analysis (DA) were used to classify the quality of rainwater at each location into four clusters, namely good, satisfactory, moderate, and bad clusters. Note that DA was carried out on the predefined clusters. The reduction in acidity levels occurred in 11 stations (46% of overall stations) after the MCO was implemented. Chemical content and ion abundance followed a downward trend, indicating that Cl- and Na+ were the most dominant among the anions and cations. Apart from that, NH4+, Ca2+, NO3-, and SO42- concentrations were evident in areas with significant anthropogenic activity, as there was a difference in the total chemical content in rainwater when compared before and during the MCO. Based on the dataset before the MCO, 75% of gauge stations were in the good cluster, 8.3% in the satisfactory cluster, 12.5% in the moderate cluster, and 4.2% in the bad cluster. Meanwhile, the dataset during the MCO shows that 72.7% of gauge stations were in the good cluster, 9.1% in the satisfactory cluster, 9.1% in the moderate, and 4.5% in the bad cluster. From this study, the chemometric analysis of the year 2020 rainwater chemical composite dataset strongly indicates that reduction of human activities during MCO affected the quality of rainwater.
Subject(s)
COVID-19 , Rain , Humans , Chemometrics , Pandemics , Environmental Monitoring , CationsABSTRACT
Aim: The first Covid-19 cases were reported in Malaysia on 25 January 2019 followed by a quiescent period before an upward swing of the cases at the end of February 2020, partly attributed to mass gathering during a religious event. This short communication aims to provide an overview of the measures taken by the Malaysian Government in response to Covid-19, and of the effectiveness of the Movement Control Order. Subjects and methods: This short communication reviews articles and government announcements related to containment measures and the Movement Control Order of Malaysia, and graphically presents data pertinent to Covid-19 in Malaysia in order to show the relationship between fluctuations in Covid-19 cases and movement control. Results: At the onset of the Covid-19 outbreak, Malaysia had initiated travel restrictions and quarantine; but with a persistent increase in new Covid-19 cases, the Movement Control Order was finally rolled out on 18 March 2020, requiring closure of all businesses except those providing essential services and items. Enforcement of the order was tightened progressively, resulting in significant improvement of compliance, while other interventions such as tracking of potential contacts and medical screening were underway, and the media continued to provide updates and general advices. The numbers of new and active Covid-19 cases started showing evident downtrends from mid-April, thus indicating the effectiveness of movement control and its compliance. Conclusion: The article provides insight into crucial factors contributing to the success of movement control to effectively contain Covid-19, and highlights the need to prevent future upsurge through continuous monitoring and enforcement.
ABSTRACT
Mining activities in the Chini Lake catchment area have been extensive for several years, contributing to acid mine drainage (AMD) events with high concentrations of iron (Fe) and other heavy metals impacting the surface water. However, during the restriction period due to the COVID-19 outbreak, anthropogenic activities have been suspended, which clearly shows a good opportunity for a better environment. Therefore, we aimed to analyze the variation of AMD-associated water pollution in three main zones of the Chini Lake catchment area using Sentinel-2 data for the periods pre-movement control order (MCO), during MCO, and post-MCO from 2019 to 2021. These three zones were chosen due to their proximity to mining areas: zone 1 in the northeastern part, zone 2 in the southeastern part, and zone 3 in the southern part of the Chini Lake area. The acid mine water index (AMWI) was a specific index used to estimate acid mine water. The AMWI values from Sentinel-2 images exhibited that the mean AMWI values in all zones during the MCO period decreased by 14% compared with the pre-MCO period. The spatiotemporal analysis found that the highest polluted zones were recorded in zone 1, followed by zone 3 and zone 2. As compared with during the MCO period, the maximum percentage of increment during post-MCO in all zones was up to 25%. The loosened restriction policy has resulted in more AMD flowing into surface water and increased pollution in Chini Lake. As a whole, our outputs revealed that Sentinel-2 data had a major potential for assessing the AMD-associated pollution of water.
Subject(s)
COVID-19 , Water Pollutants, Chemical , Humans , Environmental Monitoring/methods , Malaysia , Water Pollution/analysis , Acids/analysis , Water/analysis , Water Pollutants, Chemical/analysisABSTRACT
During the pandemic, the lives of B40 single mothers were severely affected, especially in terms of social, economic, and psychological factors. The reduction of income caused by the crisis has forced single mothers and their children to live frugally and without luxury. They also had to perform more than one job at a time during the pandemic to meet their children's needs. A qualitative study has been conducted to explore the perceptions of quality of life during the pandemic among B40 single mothers. Respondents were selected based on demographic characteristics established before the study. A focus group discussion has been conducted on ten (10) B40 single mothers in Balik Pulau, Penang. Single mothers were selected based on purposive sampling. They had to meet the inclusive criteria required to participate in the study, specifically: aged between 20 and 60 years old, belonged to the B40 income category, had children under 18 years old living together, and became single mothers due to divorce or death of husbands. The focused group discussion explored issues related to qualities of life during the pandemic. B40 single mothers expressed their concern about access to health facilities, security in residence, children's education, and economic stability. These areas of life quality have been significantly affected especially during Movement Control Order (MCO). In short, the quality of life of these single mothers has been significantly affected by the pandemic. Their vulnerability towards stress, anxiety, and depression have worsened due to financial issues. Besides the need for emotional and social support, this study found that these single mothers entail financial support.
Subject(s)
Mothers , Quality of Life , Adolescent , Adult , Child , Female , Humans , Middle Aged , Mothers/psychology , Pandemics , Single-Parent Family , Social Support , Young AdultABSTRACT
Background: The COVID-19 pandemic has negatively impacted the eating behaviours of people especially fruits and vegetable intake. No study has addressed the fruits and vegetables intake during the COVID-19 in Malaysia. Aim: to assess the daily intake of fruits and vegetables among Malaysian adults during the COVID-19 outbreak, perceived changes in intake, as well as factors associated with the changes in intake. Methods: A cross-sectional study was conducted through online platforms and a total of 506 participants were recruited. Semi food-frequency questionnaires were used to assess participants' fruit and vegetable intake. Socio-demographics information, knowledge, attitude and practices (KAP) of fruits and vegetables were collected. All statistical analyses were performed using SPSS. Results: The majority of participants (99.8%) did not achieve the recommended five servings per day, in which they consumed an average of 0.84 servings of fruits and vegetables per day. 46.4% of participants reported no changes in intake compared to before the outbreak. Fruits and vegetables intake was associated with physical activity level, knowledge, and beliefs of foods that may prevent/cure COVID-19. Binary logistic regression identified two significant risk factors of daily fruits and vegetables intake namely, being a non-Chinese (AOR = 1.905, 95% CI = 1.114-3.257) and having good practices scores (AOR = 2.543, 95% CI = 1.611-4.015). Conclusion: The study found a low daily intake of fruits and vegetables. The findings suggested that nutritional interventions are necessary to improve awareness on consuming more fruits and vegetables to improve overall health.