var csvLayer = new CSVLayer({
                    url: numberLayers[0].Url,
                    popupTemplate: popupTemplate,
                    featureReduction: {
                        type: "selection"
                    },
                });

var popupTemplate = {
                    title: "{SensorTitle}",
                    content:
                        [
                            {
                                type: "fields",
                                fieldInfos: [
                                    { fieldName: "DateTime", label: "Date" },
                                    { fieldName: "Temp", label: "Temperature (°F)" },
                                    { fieldName: "Humidity", label: "Humidity (%)" },
                                    { fieldName: "DewPoint", label: "Dew Point (°F)" },
                                    { fieldName: "PM1", label: "PM 1.0 (µg/m3)" },
                                    { fieldName: "PM25", label: "PM 2.5 (µg/m3)" },
                                    { fieldName: "PM10", label: "PM 10.0 (µg/m3)" },
                                    { fieldName: "O3", label: "Ozone (ppb)" },
                                    { fieldName: "NO2", label: "Nitrogen Dioxide (ppb)" },
                                    { fieldName: "CO", label: "Carbon Monoxide (ppb)" },
                                ]
                            },
                        ],
                    actions:
                        [
                            { title: "More Information", id: "more-info", className: "esri-icon-notice-round" }
                        ],
                    overwriteActions: true,
                };